S O M T A C A T A L O G U E P 1 2 · 2016. 12. 1. · 2011400 9.922 10 10.319 10.5 10.716 11 11.112...

S O M T A C A T A L O G U E P 1 2

Somta Tools was founded in 1954 by Samuel Osborn Ltd of Sheffield, England, through its subsidiaries Osborn Steels and Osborn Mushet Tools. The name Somta was chosen as the acronym for these companies operating in South Africa.

Somta continues to operate from its original site on Moses Mabhida (formerly Edendale) Road in Pietermaritzburg. Somta's expansion has been brought about by the acquisition of two cutting tool companies during the 1980's. Additional growth is realised by continual investment in new plant, with emphasis on state of the art CNC equipment such as Junker, Normac, Rollomatic, Walter, Reinecker and Reishauer machines including new ANCA and Walter CNC grinding machines to further expand solid carbide range manufacturing capacity.

From humble beginnings in 1954 with 20 employees, Somta has grown into one of the largest cutting tool manufacturers in the southern hemisphere, operating from offices and modern manufacturing facilities laid out over 3 hectares with a complement of over 400 employees.

The factory in Pietermaritzburg manufactures 7 000 standard items and a further 3 000 made-to-order items to serve local markets and export markets in over 70 countries worldwide.

Somta Tools specialises in the design and manufacture of standard and custom tools for the industrial and "do it yourself" markets. Product categories can be summarised as drills, cutters, reamers , threading tools and toolbits, which are made in a wide range of sizes, using various materials (HSS and Solid Carbide) and Balzers PVD surface coatings to extend wear life.

The company's vision of "To manufacture and supply superior cutting tools, driven by a culture of service excellence, to global and domestic markets" is supported by ISO 9002 which was achieved in 1991 and ISO 9001 in 2003 and 2008.

Manufacturers & Suppliers of Drills, Reamers, End Mills, Bore Cutters, Taps & Dies, Toolbits, Solid Carbide Tooling, Carbide Insert Tooling, Custom Tools and Surface Coatings

Somta has an integrated state of the art Balzers PVD Rapid coating system in it's manufacturing programme, offering the

®innovative range of Balzers BALINIT high performance coatings on all cutting tools.

S O M T A P 1 2 C A T A L O G U E

IS O M T A P 1 2 C A T A L O G U E

Incli

-na

tion

High SpeedSteel

5% CobaltHigh Speed Steel

8% CobaltHigh Speed Steel

8% Cobalt HSS,Eccentric ReliefSharpening

3% VanadiumHigh Speed Steel

9-10% Cobalt,0.2-0.8 μm Grain size.

Steam (HOMO)Temper

No Surface Treatment

Titanium Nitride(Gold Finish)

Oerlikon Balzers coatingspecially adapted to suitapplication.

Titanium AluminiumNitride (Black Finish)

Type NStandard

Type WFor Soft Materials

Type HFor Hard Materials

Colour BandApplication

Staggered Teeth Side& Face Cutters

StraightTeeth Side & FaceCutters

Fine Pitch KnuckleType Roughing Profile

Coarse Pitch KnuckleType Roughing Profile

ISO Standard 529 DIN Standard 371FactorySpecifications

Refined Flute Quick SpiralReamer to produceH7 Tolerance

Flatted Shankh6 Tolerance

Plain Shankh7 Tolerance

Threaded Shankh8 Tolerance

Carbide Plain Shankh6 Tolerance

Morse TaperShank

Drill PointAngles

CountersinkAngles

DrillsStub Series

DrillsJobber Series

DrillsLong Series

DrillsExtra Length Series

HSSHSSHSSHSSHSS HSSHSSHSSHSSHSSCo5Co5Co5Co5Co5

HSSHSSHSSHSSHSSCo8Co8Co8Co8Co8

HSSEHSSEHSSEHSSEHSSEV3V3V3V3V3

*SOLID*SOLID*SOLID*SOLID*SOLIDCARBIDECARBIDECARBIDECARBIDECARBIDE

HSSHSSHSSHSSHSSCo8eCo8eCo8eCo8eCo8e

BLUEBLUEBLUEBLUEBLUEFINISHFINISHFINISHFINISHFINISH

BRIGHTBRIGHTBRIGHTBRIGHTBRIGHTFINISHFINISHFINISHFINISHFINISH

TiNTiNTiNTiNTiN

COATEDCOATEDCOATEDCOATEDCOATED

TiAlNTiAlNTiAlNTiAlNTiAlN

TYPETYPETYPETYPETYPENNNNN

TYPETYPETYPETYPETYPEHHHHH

CBACBACBACBACBA

TYPETYPETYPETYPETYPEWWWWW

ISOISOISOISOISO529529529529529

DINDINDINDINDIN371371371371371

RFRFRFRFRF QSQSQSQSQS

WORKSWORKSWORKSWORKSWORKSSTD.STD.STD.STD.STD.

H 7H 7H 7H 7H 7

MT 3 - 5

Carbon SteelCARBONCARBONCARBONCARBONCARBONSTEELSTEELSTEELSTEELSTEEL

Parabolic FluteStrong Core

TYPETYPETYPETYPETYPEFSFSFSFSFS

Coarse Pitch FlatCrest Rough Semi-finishing Profile

Fine Pitch Flat CrestRough Semi-finishing Profile

Mat

eria

lFi

nish

Type

End MillsRegular Series

End MillsLong Series

Milli

ng P

rofile

Stan

dard

Shan

kPo

int A

ngle

Leng

ths

Flut

e H

elix

Ang

leC

entre

Dril

ls

Continued on next page...

Left handhelix

Right handhelix

Form AStandard

Form BProtected

Form RRadius

To Suit 1 in10 Taper

To Suit 1 in50 Taper

To Suit 1 in 48Taper

Steam (HOMO)TemperStraw Colour

GOLDGOLDGOLDGOLDGOLDOXIDEOXIDEOXIDEOXIDEOXIDE

ICONLEGEND & DESCRIPTION

II W O R L D C L A S S C U T T I N G T O O L S

Thre

ads

Tole

ranc

e

Direction ofCut

Taper, Through& Blind Hole

Through &Blind Hole

Blind Hole Tapping Through Hole Tapping

Left HandCutting

Right HandCutting

Hand Taps

Metric Metric FineBritish StandardWhitworth

British StandardWhitworthFine

Unified NationalCoarse

Unified NationalFine

British Standard PipeTaper “F” Series

British Standard Pipe(Fine) “G” Series

National PipeStraight

National PipeTaper

BritishAssociation

Thread Form - with47½°/55°/60° flankangle

WoodruffTolerance

Corner RoundingTolerance

BSPBSPBSPBSPBSP

BSBBSBBSBBSBBSBNPSNPSNPSNPSNPS

MFMFMFMFMFMMMMM BSWBSWBSWBSWBSW BSFBSFBSFBSFBSF

UNCUNCUNCUNCUNC UNFUNFUNFUNFUNF BSPTBSPTBSPTBSPTBSPT

NPTNPTNPTNPTNPT BABABABABA British StandardBrass

Tolerance oncutting Diameter

Appl

icatio

n

GENERALMATERIAL DESCRIPTIONS

Code 0 Code 1 Code 2 Code 3 Code 4 Code 5 Code 7

Free Cutting SteelsCarbon SteelAlloy Steel

Stainless Steel

Heat Resisting Alloys

Nimonic Alloys

Titanium

Tool Steel

Cast Irons

Nickel

Manganese Steels

Aluminium AlloysMagnesium AlloysZinc Alloys

Copper

Synthetics / Plastics

xxx

x

x

x

x

x

x

x

xxx

x

x

x

x

x

xx

x

x

xxx

x

x

x

x

x

xx

x

x

xxx

x

x

x

x

x

x

x

x

xxx

x

x

x

x

x

x

xxx

x

x

xxx

x

x

x

x

x

x

x

x

xxx

x

x

x

x

x

x

xxx

x

x

Materials

ICONLEGEND & DESCRIPTION ... from previous page

PRODUCT SPEC. RANGECODETYPE PAGE

VIIINote: Red denotes Somta Premium Products

W O R L D C L A S S C U T T I N G T O O L S

INDEXMORSE TAPER SHANK DRILLS

2A1

48-49

51-52

2A2 53

Morse Taper Shank DrillsBlue Finish - HSSFor general purpose drilling.

3-76

1/4-2”

201-205

211-214

MTS Chipbreaker DrillsBlue Finish - HSSHigh performance production drilling.

MTS Oil Tube Chipbreaker DrillsCross Hole Feed - Blue Finish - HSSHigh performance production drilling.

DIN 345

DIN 34510-50

7/16-1.3/4

12-265/8

WORKSSTD.

208 50Heavy Duty MTS DrillsGold Oxide Finish - HSS-Co5For general purpose drilling in difficult materials.

14-38DIN 345

2A7 54MTS Oil Tube Chipbreaker Drills - Cross HoleFeed - Gold Oxide Finish - HSS-Co5High performance production drilling.

9/16-1.3/16WORKS

STD.

242244-245

252254-255

56

57

MTS Extra Length Drills - Blue Finish - HSSFor extra deep hole drilling. WORKS

STD.

10-50

1/4-1.3/4

221-224

279

58

59

MTS Core Drills - Blue Finish - HSSFor enlarging diameters of existingholes whether drilled, punched or cast.

MTS Rail Drills - Blue Finish - HSS-Co8For drilling manganese rails and othertough steels.

DIN 343 14-42

WORKSSTD.

22-35

Sorgers - Bright Finish - HSSA wood auger for drilling alltypes of wood. 60

291292295

15-2217.5

17.5-19

WORKSSTD.

Drill Terminology - 61-66--

261 55MTS Armour Piercing DrillsBlue Finish - HSS-Co8Heavy duty drilling in work hardening and heat treated steels.

WORKSSTD.

10-501/2-15/16

GENERAL TERMS & CONDITIONS OF SALE - 243--

M O R S E T A P E R S H A N K D R I L L S

MORSE TAPERSHANK DRILLS

48 W O R L D C L A S S C U T T I N G T O O L S

Morse Taper Shank Drills


HSSHSSHSSHSSHSS


MT 1 - 5

STANDARDPOINT


MMMMMINCHINCHINCHINCHINCH

201 - 205211 - 214

Suited Materials

Properties

Codes


203235021323812032400203245020325002132540203255020326002032650213269920327002032750

2828.5

28.57529

29.530

30.16230.531

31.531.750

(32)

291296296296296296301301301301306306

dmm inch

Codel2 l1d

mm inchCodel2 l1

No. 2 Morse Taper Shank

No. 1 Morse Taper Shank8787878794949494101101101101101108108108

168168168168175175175175182182182182182189189189

2110992201100021110322011050211107220111002111111201115021111912011200201125021112702011300211134920113502011400

9.92210

10.31910.5

10.71611

11.11211.5

11.90612

12.512.700

1313.49413.514

33.54

4.55

5.56

6.3506.57

7.57.937

88.59

9.59.525

3339434752575763636969757575818187

114120124128133138138144144150150156156156162162168

20103002010350201040020104502010500201055020106002110635201065020107002010750211079420108002010850201090020109502110953

25/64

13/32

27/64

7/16

15/32

1/2

17/32

1/4

5/16

3/8

(14)14.28714.5

14.68415

15.08115.47815.5

15.87516

16.27216.5

16.66917

17.46217.518

9/16

37/64

19/3239/64

5/8

41/64

21/32

11/16

114114114114114120120120120120125125125125130130130

212212212212212218218218218218223223223223228228228

20214002121429202145021214682021500212150821215482021550212158820216002121627202165021216672021700212174620217502021800

18.25618.5

18.65319

19.05019.520

20.520.637

2121.43121.522

22.22522.523

23/32

47/64

3/4

13/16

27/32

7/8

135135135135140140140145145145150150150150155155

233233233233238238238243243243248248248248253253

2121826202185021218652021900212190520219502022000202205021220642022100212214320221502022200212222320222502022300

23.523.812

2424.525

25.40025.526

26.526.987

2727.5

15/16

1”

1.1/16

155160160160160165165165165170170170

276281281281281286286286286291291291

1.1/8

1.3/16

1.1/4

170175175175175175180180180180185185

203280020328502132858203290020329502033000213301620330502033100203315021331752033200


GENERALGENERALGENERALGENERALGENERAL

49





HSSHSSHSSHSSHSS


MT 1 - 5

STANDARDPOINT



201 - 205211 - 214

Suited Materials

Properties

Codes

... from previous page

3232.533

33.33733.534

34.534.925

3535.536

36.536.512

3737.538

38.10038.539

39.539.687

4040.5

4141.27541.542

42.543

43.544

44.45044.545

45.546

46.547

47.547.625

4848.549

49.550

50.550.800

1.5/16

1.3/8

1.7/16

1.1/2

1.9/16

1.5/8

1.3/4

1.7/8

2”

185185185185185190190190190190195195195195195200200200200200200200205

205205205205205210210210210210210215215215215215220220220220220220225225

334334334334334339339339339339344344344344344349349349349349349349354

354354354354354359359359359359359359364364364364369369369369369369374374

20432002043250204330021433342043350204340020434502143493204350020435502043600204365021436512043700204375020438002143810204385020439002043950214396920440002044050

204410021441282044150204420020442502044300204435020444002144445204445020445002044550204460020446502044700204475021447632044800204485020449002044950204500020450502145080

dmm inch

Codel2 l1d

mm inchCodel2 l1

5151.552

52.553

53.554

54.555

55.556

56.557

57.558

58.559

59.5

6061626364656667686970717273747576

225225225225225230230230230230230235235235235235235235

235240240240245245245245250250250250255255255255260

412412412412412417417417417417417422422422422422422422

422427427427432432432432437437437437442442442442447

205510020551502055200205525020553002055350205540020554502055500205555020556002055650205570020557502055800205585020559002055950

20560002056100205620020563002056400205650020566002056700205680020569002057000205710020572002057300205740020575002057600






Heavy Duty MTS Drills



MT 1 - 4


SPLITPOINT

208

Suited Materials

MMMMM


Properties

Code

d Codel2 l1 d Codel2 l1

14 108 189 2081400

20818502081900208195020820002082100208220020822502082300

18.519

19.5202122

22.523

135135140140145150155155

233233238238243248253253

14.515

15.516

16.517

17.518

114114120120125125130130

212212218218223223228228

20814502081500208155020816002081650208170020817502081800

2424.525

25.526

2728293031

160160160165165

170170175175180

281281281286286

291291296296301

20824002082450208250020825502082600

20827002082800208290020830002083100

323334

3538

185185190

190200

334334339

339349

208320020833002083400

20835002083800





CARBON & ALLOY STEEL


51



MTS Chipbreaker Drills

CHIPBREAKERFORM


HSSHSSHSSHSSHSSDINDINDINDINDIN345345345345345

MT 1 - 4

2A1

Suited Materials



Properties

Code


101101101101101101101108108108108108

182182182182182182182189189189189189

2A111912A112002A112202A112312A112502A112752A113002A113492A113502A113752A113892A11400

11.90612

12.212.30312.512.75

1313.49413.513.7513.891

14

1010.210.2510.510.610.75

1111.11211.211.511.711.8

878787878794949494949494

168168168168168175175175175175175175

2A110002A110202A110252A110502A110602A110752A111002A111112A111202A111502A111702A11180

15/32

31/64

17/32

35/64

7/16

(14)14.214.2514.28714.5

14.68414.75

1515.08115.2515.515.615.7515.87515.916

16.116.2516.316.5

16.66916.75

1717.2517.46217.518

18.2

18.2518.25618.518.718.75

1919.05019.2519.4

19.44719.519.7519.844

2020.2520.5

20.63721

21.03421.2521.5

21.82822

22.2522.523

23.019

9/16

37/64

19/32

5/8

21/32

11/16

23/32

3/4

49/64

25/32

13/16

53/64

55/64

29/32

114114114114114114114114120120120120120120120120125125125125125125125130130130130135

135135135135135135140140140140140140140140145145145145145150150150150150155155155

212212212212212212212212218218218218218218218218223223223223223223223228228228228233

233233233233233233238238238238238238238238243243243243243248248248248248253253253

2A114012A114202A114252A114292A114502A114682A114752A115002A115082A115252A115502A115602A115752A115882A115902A116002A116102A116252A116302A116502A116672A116752A117002A117252A117462A117502A118002A11820

2A118252A118262A118502A118702A118752A119002A119052A119252A119402A119452A119502A119752A119842A120002A120252A120502A120642A121002A121032A121252A121502A121832A122002A122252A122502A123002A12302

dmm inch

Codel2 l1d

mm inchCodel2 l1

23.2523.41623.523.7523.812

2424.5

2A123252A123422A123502A123752A123812A124002A12450

2A125002A124992A125252A125392A125502A125792A12600

2525.00325.2525.40025.5

25.79726

59/64

15/16

63/64

1"

1.1/64

155155155160160160160

160165165165165165165

276276276281281281281

281286286286286286286







MTS Chipbreaker Drills

CHIPBREAKERFORM



MT 1 - 4

2A1

Suited Materials



Properties

Code

26.19426.5

26.98727

27.528

28.528.575

1.1/32

1.1/16

1.1/8

165165170170170170175175

286286291291291291296296

2A126192A126502A126992A127002A127502A128002A128502A12858

2929.36929.53031

31.531.750

(32)

1.5/32

1.1/4

175175175175180180185185

296296296296301301306306

2A129002A129372A129502A130002A131002A131502A131742A13200

dmm inch

Codel2 l1d

mm inchCodel2 l1

2A132012A132152A132502A133002A133342A133502A134002A134132A134502A134932A135002A136002A136502A137002A138002A138092A13850

2A139002A139502A140002A140502A141002A142002A143002A144002A144452A144502A145002A145502A146002A147002A148002A149002A15000

3232.147

32.533

33.33733.534

34.13134.5

34.9253536

36.53738

38.10038.5

3939.540

40.541424344

44.45044.545

45.54647484950

1.17/64

1.5/16

1.11/32

1.3/8

1.1/2

1.3/4

185185185185185185190190190190190195195195200200200

200200200205205205210210210210210215215215220220220

334334334334334334339339339339339344344344349349349

349349349354354354359359359359359364364364369369369



... from previous page


53



MTS Oil Tube Chipbreaker Drills, Cross Hole Feed


CHIPBREAKERFORM


HSSHSSHSSHSSHSS

MT 3

2A2

Suited Materials



Properties

Code

1214

15.875161820222426

111124124124130140149158165

228241244244250260270279286

2A212002A214002A215882A216002A218002A220002A222002A224002A22600


dmm inch

Codel2 l1

5/8





CHIPBREAKERFORM



MT 3-4

2A7

Suited Materials

INCHINCHINCHINCHINCH


Properties

Code

MTS Oil Tube Chipbreaker Drills, Cross Hole Feed

14.28817.46220.63822.22523.81226.988

28.57530.162

124130146149158168

174181

241250266270279289

324330

2A714292A717462A720642A722232A723812A72699

2A728582A73016


dinch

mmEquiv.

Codel2 l1

9/1611/1613/167/8

15/161.1/16

1.1/81.3/16



55



TITANIUMMANGANESESTEEL

STAINLESSSTEEL

HEAT RESISTINGALLOY

MTS Armour Piercing Drills

NOTCHEDPOINT





MT 1 - 5

261

Suited Materials


Properties

Code

10 56 140 2611000

26119002611905261200026120642612100

1919.051

2020.638

21

959595102102

213213213219219

1515.876

161718

8989899292

187187187190190

26115002611588261160026117002611800

1112

12.7001314

14.288

768181818686

175179179179184184

261110026112002611269261130026114002611429

2222.22623.813

2425

2628303235

105105105105108

124124124133136

222222222222225

270270270280292

26122002612223261238126124002612500

26126002612800261300026132002613500

dmm inch

Codel2 l1d

mm inchCodel2 l1

5/81/2

9/16

3/4

13/16

7/815/16

2613600261380026140002614500

36384045

146149152152

292295298298





50 152 356 2615000No. 5 Morse Taper Shank



MTS Extra Length Drills


HSSHSSHSSHSSHSS


MT 1 - 4

STANDARDPOINT

MMMMM

242,244 - 245

Suited Materials

Properties

Codes


l2l1

d 300400

200315

375530

375500

300450

1010.511

11.5121314

151617181920212223

24252627282930

3235384042454850

2421000242105024211002421150242120024213002421400

242150024216002421700242180024219002422000242210024222002422300

-------

--------

--

2441100-

244120024413002441400

244150024416002441700244180024419002442000244210024422002442300

-------

--------

-------

---------

2442400244250024426002442700244280024429002443000

24432002443500244380024440002444200244450024448002445000

-------

-24516002451700245180024519002452000245210024522002452300

2452400245250024526002452700245280024529002453000

--------

-------

---------

-------

24532002453500245380024540002454200245450024548002455000






57




HSSHSSHSSHSSHSS


MT 1 - 4

STANDARDPOINT

INCHINCHINCHINCHINCH

252,254 - 255

Suited Materials

Properties

Codes


MTS Extra Length Drills

1/45/163/87/161/2

9/165/8

11/163/47/8

1”

1.1/21.3/4

6.3507.9379.52511.11212.700

14.28715.87517.46219.05022.225

25.400

38.10044.450

252063525207942520953

-2521270

2521429252158825217462521905

-

-

--

2540635254079425409532541111

-

-2541588254174625419052542223

-

--

-----

-----

2542540

25438102544445

-----

-2551588

-2551905

-

-

--





8"315

mmEquivalent

12"400

15"500

12"450

dl2l1




MTS Core Drills


BLUEBLUEBLUEBLUEBLUEFINISHFINISHFINISHFINISHFINISHMT 1 - 4

221 - 224

Suited Materials

MMMMM


Properties

Codes

Core drills up to and including 19mm have 3 flutes.All sizes above 19mm have 4 flutes.

14 108 189 2211400

24252627

160160165170

281281286291

16171819

120125130135

218223228233

2221600222170022218002221900

d Codel2 l1 d Codel2 l1

2222000222210022222002222300

238243248253

140145150155

20212223

2232400223250022326002232700

223280022330002233100

283031

170175180

291296301

22432002243300224340022435002243600

22437002243800224400022441002244200

3233343536

3738404142

185185190190195

195200200205205

334334339339344

344349349354354






59



TITANIUMMANGANESESTEEL

STAINLESSSTEEL

HEAT RESISTINGALLOY

Suited Materials

MTS Rail Drills

NOTCHEDPOINT




BLUEBLUEBLUEBLUEBLUEFINISHFINISHFINISHFINISHFINISHMT 3

279

MMMMM

Properties

Code

27922002792600279280027932002793500

281286291306312

100100100100100

2226283235


d Codel2 l1



Sorgers - For Drilling All Types Of Wood

1517.51922

300300300300

180180180200

80808080

12.312.312.312.3

2911500291175029119002912200

-291175129119012912201

l2With Flat Plain Shank

d2l3l1d1Code

STANDARD

17.519

310310

210210

100100

1619

29517502951900

l2 d2l3l1d1 Code

MINING SORGERS


BRIGHTBRIGHTBRIGHTBRIGHTBRIGHTFINISHFINISHFINISHFINISHFINISH

HSSHSSHSSHSSHSS

291, 292

295

Suited Materials

MMMMM

Properties

Codes

WOOD

17.5 300 180 40 11.11 2921750

l2 d2l3l1d1 Code

SORGER WITH HEXAGON SHANK

61



TANG

MORSE TAPERSHANK

RECESS

OVERALLLENGTH

BODYLENGTH

FLUTELENGTH

DIAMETER

HELIXANGLE

SHANKLENGTH

BODYCLEARANCEDIAMETER WEB

THICK-NESS

CIRCULARLAND

FLANK

CHISELEDGE

LIPLENGTH

POINTANGLE

LIPCLEARANCE

ANGLE

DETAILED VIEW OF LIP CLEARANCE

CHISELANGLE

HEEL

POINT

SLOW

STANDARD

QUICK

TYPES OF SPIRAL (OR HELIX) ANGLES

Note : Selecting the correct DrillRefer to the SOMTA User Guide for detailed information.

Drill Terminology




DRILL POINT STYLES

118°

130° 118° 70°

Standard Point Split Point

“UX Point” Cast Iron Point“DX Point”

Benefits of the Parabolic Flute Form

Heavy web construction increases rigidity under torsional load thus eliminating chatterat the cutting edges which cause edge break down and early failure. The Parabolic drillweb is 50-90% thicker than the standard drill, depending on drill diameter.

Wider flute form, together with quicker spiral, promotes better chip removal while allowingeasier coolant flow to the drill point.

FLUTE FORMS

Conventional Web Parabolic Flute FormThicker Web

Chipbreaker

Thinned Chisel Edge

Drill Terminology... from previous page


63




STANDARD MORSE TAPER SHANKTo I.S.O. 296 DIN228 BS1660

No.of

Taper

Fittingline

DiameterD

Diameterd

OverallLength

MaxL

D 1 a MaxL1

Maxe

H13b

Maxd1

Taper /mm

on Dia

MaxR

123456

12.06517.78023.82531.26744.39963.348

9.014.019.025.036.052.0

65.580.099.0124.0156.0218.0

12.218.024.131.644.763.8

3.55.05.06.56.58.0

62.075.094.0117.5149.5210.0

13.516.020.024.029.040.0

5.26.37.911.915.919.0

8.713.518.524.535.751.0

5.06.07.08.010.013.0

0.049980.049950.050200.051940.052630.05214

d b

R

e

D

aL1

D1 d1

L




Specify whether drill is to be Step or Subland Type.D = Diameter of large, fluted section.P = Diameter of small, fluted section.A = Shank Diameter.L = Overall Length.F = Flute Length.E = Length of Small Diameter. This is measured from the extreme point to the bottom corner of thestep angle.X°= Included angle of the step angle.S = Shank Length.

It is possible to drill two or more diameters in a hole on one operation with a correctlydesigned drill and these are often used in mass production engineering.

MULTIPLE DIAMETER DRILLS

D

E S

L

F

AP

X°

Some of the hole types that can be drilled in a single operation.

If you have a cutting tool problem, please feel free to ask fortechnical assistance.



65



MODIFIED STANDARDS

There are many instances when a special tool (a tool not found in the Somta catalogue or price list)can be manfactured from a standard product. We call this a ‘modified standard’. Somta has both thecapability and capacity to offer this service which, under normal circumstances, means a shortdelivery time.

The following are typical drill modifications:

Intermediate Diameters

Standard sizes can be ground down to special diameters and tolerances.

Reduced Overall Lengths

Standard drills can be cut to special lengths.

Drill Points

The standard drill point angle is 118° included. This can be modified to any angle required. Manyspecial points are available which include web thinning, notch points, split points, double anglepoints, spur and brad points etc.

Tangs and Flats

Tangs can be produced to DIN, ASA and ISO, also special whistle notch flats on shanks.

Step Drills

Standard drills can be modified into step drills. (See drawing on page 64).

Surface Treatments

A full range of surface treatments including nitriding, stream oxide, chemicalblackening, gold oxide and various titanium coatings are available.





When an intermediate diameter or a non standard length of drill is required, the following diametersand lengths need to specified.

Straight Shank Drills


F

S

L

AD

F

L

D

M

D = Drill DiameterA = Shank DiameterL = Overall LengthF = Flute LengthS = Shank LengthM = Morse Taper Size


243S O M T A P 1 2 C A T A L O G U E

CONDITIONSOF SALE

All deliveries of goods will be made in terms of our General Terms and Conditionsof Sale, which are available in detail, on request.

No modifications or allowances will be accepted unless agreed to in writing by theCompany.

Delivery Terms

All deliveries inside the Republic of South Africa will be free of charge. The Companyhowever reserves the right to charge a fee for special deliveries of small quantities.

For all deliveries outside the Republic of South Africa, the cost of delivery will be forthe customer’s account unless otherwise agreed to in writing by the Company.

Terms of Payment

All payments will be made in accordance with our General Terms and Conditionsof Sale, and other terms agreed to in writing by the Company.

Special Tooling

Our delivery programme is based mainly on the standard tooling in this catalogue.

Special tooling can be provided on request, based on other international standardsor customer’s specifications and drawings.

Deliveries of such tooling will be subject to a quantity variation of +/- 10% of theorder quantity, with a minimum quantity variation of one piece.

Request for tooling to customer specification will only be put into production againsta signed copy of the customer’s drawings and specifications, or a copy of ourcustomer approval drawing.

No special tooling orders can be cancelled or returned.

Note : All terms and conditions may be changed at the discretion of the Company.

General Terms and Conditions of Sale

ISO

9 001

Head Office and Surface Coating DivisionSomta House, 290-294 Moses Mabhida (Edendale) Road, Pietermaritzburg, 3201Private Bag X401, Pietermaritzburg, 3200South Africa

Tel: Factory: +27 33 355 6600Fax: Factory: +27 33 394 0564Tel: Sales: +27 11 390 8700 (Local)Fax: Sales: +27 11 397 6720/1 (Local)Email: [email protected] (Local)Tel: Sales: +27 33 355 6600 (Exports)Fax: Sales: +27 33 394 7509 (Exports)Email: [email protected] (Exports)

Technical Information: Email: [email protected] Free Number: 0800 331 399

Gauteng Sales Office43 Bisset Road, Hughes Ext. 7, Boksburg, 1459P.O.Box 14212, Witfield, 1467South Africa

Tel: +27 11 390 8700Fax: +27 11 397 6720/1Sharecall: 086 010 4367Email: [email protected]

S O M T A C A T A L O G U E P 1 2 · 2016. 12. 1. · 2011400 9.922 10 10.319 10.5 10.716 11 11.112...

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Transcript of S O M T A C A T A L O G U E P 1 2 · 2016. 12. 1. · 2011400 9.922 10 10.319 10.5 10.716 11 11.112...