drilling suppliesDTH & OTH Shock Absorbers3” - 24” diameter

DTH & OTH Shock AbsorbersPart No. Description Shock Absorbers Complete Down The Hole3DTHSA 3” - 2 3/8” Reg Pin Top - 2 3/8” Reg Box Bottom4DTHSA 4” - 2 3/8” Reg Pin Top - 2 3/8” Reg Box Bottom5DTHSA 5” - 3 1/2” Reg Pin Top - 3 1/2” Reg Box Bottom6DTHSA 6” - 3 1/2” Reg Pin Top - 3 1/2” Reg Box Bottom8DTHSA 8” - 4 1/2” Reg Pin Top - 4 1/2” Reg Box Bottom10DTHSA 10” - 6 5/8” Reg Pin Top - 6 5/8” Reg Box Bottom10DTHSA858 10” - 8 5/8” Reg Pin Top - 8 5/8” Reg Box Bottom12DTHSA 12” - 6 5/8” Reg Pin Top - 6 5/8” Reg Box Bottom12DTHSA858 12” - 8 5/8” Reg Pin Top - 8 5/8” Reg Box Bottom18DTHSA 18” - 8 5/8” Reg Pin Top - 8 5/8” Reg Box Bottom24DTHSA 24” - 8 5/8” Reg Pin Top - 8 5/8” Reg Box Bottom

Out The Hole4OTHSAHFHP 4” - Holman Flange Top - Holman Pin Bottom4OTHSAHF238B 4” - Holman Flange Top - 2 3/8” Reg Box Bottom4OTHSA238P238B 4” - 2 3/8” Reg Pin Top - 2 3/8” Reg Box Bottom5OTHSACOP238B 5” - Copco DDR42 Flange Top - 2 3/8” Reg Box Bottom5OTHSAHF238B 5” - Holman Flange Top - 2 3/8” Reg Box Bottom5OTHSA238P238B 5” - 2 3/8” Reg Pin Top - 2 3/8” Reg Box Bottom6OTHSA312P312B 6” - 3 1/2” Reg Pin Top - 3 1/2” Reg Box Bottom6OTHSA412P412B 8” - 4 1/2” Reg Pin Top - 4 1/2” Reg Box Bottom

3” D.T.H Shock Absorber Spares3DTHTOP 2 3/8” Reg Pin Top Connector3DTHBTM 2 3/8” Reg Box Bottom Connector3DTHNUT Nut3DTHSHAFT Shaft3DTHBUFF Buffer3DTHNORING Nut O Ring3DTHSORING Shaft O Ring

4” D.T.H Shock Absorber Spares4DTHTOP 2 3/8” Reg Pin Top Connector4DTHBTM 2 3/8” Reg Box Bottom Connector4DTHNUT Nut4DTHSHAFT Shaft4DTHBUFF Buffer4DTHSORING Shaft O Ring4DTHNORING Nut O Ring

Part No. Description

Item No. Description

1. Top Connector

2. Shaft

3. Shaft/O-Ring

4. Buffer

5. Nut O-Ring

6. Nut

7. Bottom Connector

Size Weight Overall Effective Outside Standard Thread Length Length Diameter Connections

3” DTH 11.5kg 17 1/4” (438mm) 14 1/4” (362mm) 3” (78mm) 2 3/8” Regular

4” DTH 16.25kg 18 3/4” (476mm) 15 3/4” (400mm) 3.68” (93mm) 2 3/8” Regular

5” DTH 27.5kg 21 3/8” (543mm) 17 5/8” (448mm) 4 1/2” (78mm) 3 1/2” Regular

6” DTH 41.5kg 23 1/4” (590mm) 19 1/2” (495mm) 5 1/4” (133mm) 3 1/2” Regular

8” DTH 85kg 27” (686mm) 22 3/4” (578mm) 7” (178mm) 4 1/2” Regular

10” DTH 151kg 30 1/8” (765mm) 25 1/8” (638mm) 8.86” (225mm) 6 5/8” Regular

12” DTH 201kg 29 1/2” (749mm) 24 1/2” (622mm) 10.15” (258mm) 6 5/8” Regular

14” DTH ??kg 34 3/4” (883mm) 29 3/8” (746mm) 12” (306mm) 8 5/8” Regular

18” DTH 671kg 41 1/4” (1048mm) 36” (914mm) 15” (381mm) 8 5/8” Regular

24” DTH ??kg 49 1/4” (1250mm) 43 3/4” (1115mm) 18” (457mm) 8 5/8” Regular

5” D.T.H Shock Absorber Spares5DTHTOP 3 1/2” Reg Pin Top Connector5DTHBTM 3 1/2” Reg Box Bottom Connector5DTHNUT Nut5DTHSHAFT Shaft5DTHBUFF Buffer5DTHSORING Shaft O Ring5DTHNORING Nut O Ring

6” D.T.H Shock Absorber Spares6DTHTOP 3 1/2” Reg Pin Top Connector6DTHBTM 3 1/2” Reg Box Bottom Connector6DTHNUT Nut6DTHSHAFT Shaft6DTHBUFF Buffer6DTHSORING Shaft O Ring6DTHNORING Nut O Ring

8” D.T.H Shock Absorber Spares8DTHTOP 4 1/2” Reg Pin Top Connector8DTHBTM 4 1/2” Reg Box Bottom Connector8DTHNUT Nut8DTHSHAFT Shaft8DTHBUFF Buffer8DTHORING O Ring

10” D.T.H Shock Absorber Spares10DTHTOP 6 5/8” Reg Pin Top Connector10DTHBTM 6 5/8” Reg Box Bottom Connector10DTHNUT Nut10DTHSHAFT Shaft10DTHBUFF Buffer10DTHNORING Nut O Ring10DTHSORING Shaft O Ring

Part No. Description Part No. Description

12” D.T.H Shock Absorber Spares12DTHTOP 6 5/8” Reg Pin Top Connector12DTHTOP858 8 5/8” Reg Pin Top Connector12DTHTORING Top Connector O Ring12DTHBTM 6 5/8” Reg Box Bottom Connector12DTHBTM858 8 5/8” Reg Box Bottom Connector12DTHNUT Nut12DTHSHAFT Shaft12DTHBUFF Buffer12DTHSORING Shaft O Ring

18” D.T.H Shock Absorber Spares18DTHTOP 8 5/8” Reg Pin Top Connector18DTHBTM 8 5/8” Reg Box Bottom18DTHNUT Nut18DTHSHAFT Shaft18DTHBUFF Buffer18DTHSORING Shaft O Ring18DTHNORING Nut O Ring

24” D.T.H Shock Absorber Spares24DTHTOP 8 5/8” Reg Pin Top Connector24DTHBTM 8 5/8” Reg Box Bottom24DTHNUT Nut24DTHSHAFT Shaft24DTHBUFF Buffer24DTHSORING Shaft O Ring24DTHNORING Nut O Ring

4” O.T.H Shock Absorber Spares4OTHCOPTOP Copco DDR 42 Drive Flange Top Connector4OTHHTOP Holman Flange Top Connector4OTH238PTOP 2 3/8” Reg Pin Top Connector4OTH238BTOP 2 3/8” Reg Box Top Connector4OTHHBTOP Holman Box Top Connector4OTHHABTOP Halco Box Top Connector4OTHNWYPTOP NWY Pin Top Connector4OTHNWYBTOP NWY Box Top Connector4OTHBODY Body4OTHRETF Retaining Flange4OTH238BSHAFT 2 3/8” Reg Box Shaft4OTH238PSHAFT 2 3/8” Reg Pin Shaft4OTHHPSHAFT Holman Pin Shaft4OTHHBSHAFT Holman Box Shaft4OTHHAPSHAFT Halco Pin Shaft4OTHHABSHAFT Halco Box Shaft4OTHNWYPSHAFT NWY Pin Shaft4OTHNWYBSHAFT NWY Box Shaft4OTHITOPFORING Internal Top Flange O Ring4OTHBTMFORING Bottom Flange O Ring4OTHCAPS Cap Heads (8 off)4OTHSWBOLT Spring Washer & Bolt (8 off)4OTHWASH Washers4OTHBOLT Bolts

5” O.T.H Shock Absorber Spares5OTH238IFPTOP 2 3/8” I/F Pin Top Connector5OTHHTOP Holman Flange Top Connector5OTHCOPTOP Copco DDR42 Flange Top Connector5OTH238BTOP 2 3/8” Reg Box Top Connector5OTH238PTOP 2 3/8” Reg Pin Top Connector5OTH238BTOP 2 3/8” I/F Box Top Connector5OTH278PTOP 2 7/8” Reg Pin Top Connector5OTH238IFBSHAFT 2 3/8” I/F Box Shaft5OTH238BSHAFT 2 3/8” Reg Box Shaft5OTH238PSHAFT 2 3/8” Reg Pin Shaft5OTHHPSHAFT Holman Pin Shaft5OTH278BSHAFT 2 7/8” Reg Box Shaft5OTHBODY Body

5OTHRETF Retaining Flange5OTHBOLTN Copco DDR42 Bolt & Locking Nuts (8 off)5OTHSWBOLT Spring Washer & Bolt (8 off)5OTHWASH Washers5OTHBOLT Bolts5OTHCAPS Cap Head (8 off)5OTHCOPFORING Copco DDR 42 Flange Top O Ring5OTHFORING Flange Top O Ring5OTHIFORING Internal Flange Top O Ring

6” O.T.H Shock Absorber Spares6OTH312PTOP 3 1/2” Reg Pin Top Connector6OTH278PTOP 2 7/8” Reg Pin Top Connector6OTH312IFPTOP 3 1/2” I/F Pin Top Connector6OTHHETOP Hans England Drive Flange Top Connector6OTHBODY Body6OTHRETF Retaining Flange6OTH278BSHAFT 2 7/8” Reg Box Shaft6OTH312BSHAFT 3 1/2” Reg Box Shaft6OTH312IFBSHAFT 3 1/2” I/F Box Shaft6OTHIFORING Internal Top Flange O Ring6OTHRETFORING Retaining Flange O Ring6OTHCAPS Cap Heads (10 off)6OTHWBOLT Bolts & Washers (10 off)

8” O.T.H Shock Absorber Spares8OTH412PTOP 4 1/2” Reg Pin Top Connector8OTH312IFBTOP 3 1/2” I/F Box Top Connector8OTH412BSHAFT 4 1/2” Reg Box Shaft8OTH312IFBSHAFT 3 1/2” I/F Box Shaft8OTHBODY Body8OTHRETF Retaining Flange8OTHTCAPS Top Connector Cap Heads (12 off)8OTHRETFCAPS Retaining Flange Cap Heads (12 off)8OTHRETFORING Retaining Flange O Ring8OTHSRING Shaft O Ring

These are samples of our most popular thread connections. Items can also be manufactured to customer’s requirements and a large variety of different threads are available on request.

Part No. Description Part No. Description