Button Bits for DTH Hammers

Manufactured in a wide variety of downhole percussion DTH bits for all popular hammers.
Each manufacturing stage of the DTH bits, from forging to button insertion, is made with modern methods and stringent quality control standards.
Bits are available in three designs each for a specific type of formation.
The “RockBuster” design is the Ultimate button DTH bit innovation, that has shown a a great versatility with fast penetration rates and exceptional resistance and durability.

“THE ROCK BUSTER”
Bits manufactured in alloy steel of a special grade with “Heavy Duty” tungsten carbide inserts for rock having more than 20.000 psi compressive strength. As clearly shown in the picture, the circumferential buttons have a larger diameter, and the special chipways are engineered to allow maximum hole cleaning and penetration. It’s a unique kind of DTH bit with very special features.

Available button DTH bits with TCI buttons on shoulders “WEAR PADS” for very abrasive formations drilling operations.

SHANK DESIGN	DTH HAMMERS IDENTIFICATIONS	SIZES AVAILABLE
SHANK DESIGN	DTH HAMMERS IDENTIFICATIONS	inch	mm.	inch	mm.
163 6 splines	EEI-1 – BULROC BR1	2 3/8 2 1/2	60 64
165 6 splines	EEI-2 – BULROC BR2	2 3/4 3 3 1/8	70 76 80
165 6 splines	EEI-3B – BULROC BR3 – DEMAG H90 – BOART BH75 – BOHLER LH78ZD – MINROC 3 – KLEMM KR-3	3 3/8 3 1/2 3 3/8	85 90 95
213 8 splines	EEI-3M – Mission 3015	3 3/8 3 1/2 3 3/4 4	85 90 95 101
233 8 splines	COP 32	3 3/8 3 1/2 3 3/8 4	85 90 95 101
181 8 splines	SANDVIK XL3 – INGERSOLL 3.5	3 3/8 3 1/2 3 3/8 4	85 90 95 101
170 8 splines	MACH 33 – VOL 300	3 3/8 3 1/2 3 3/8 4	85 90 95 101
260 8 splines	EEI-4M – MISSION SD4/A 3415 – BOART BH40 – BOHLER LH96 – BULROC BR4 V/L – DIGGER 4/42 – DRILLQUIP T4 – MACH 44M – R.H. 4M – STENUICK 4M	4 1/8 4 1/4 4 1/2 4 3/4 5	105 108 115 120 127	5 1/8	130
209 8 splines	EEI-4IR – I.R. 340A – COP 44 – BULROC H41 – VOL 400 – I.R. DH4 – MINROC 4 – NUMA 4 – SECOROC 44 – R.H. 41	4 1/8 4 1/4 4 1/2 4 3/4 5	105 108 115 120 127	5 1/8	130
226 12 splines	SANDVIK XL 4	4 1/8 4 1/4 4 1/2 4 3/4 5	105 108 115 120 127	5 1/8	130
190 7 splines	COP 42	4 4 1/8 4 1/4 4 1/2 4 3/4	101 105 108 115 120	5 5 1/8	127 130
165 6 splines	BULROC BR4 – I.R. DHD 24	4 4 1/8 4 1/4 4 1/2 4 3/4	101 105 108 115 120	5 5 1/8	127 130
244 8 splines	HALCO MACH 44	4 4 1/8 4 1/4 4 1/2 4 3/4	101 105 108 115 120	5 5 1/8	127 130
260 8 splines	EEI-5M – MISSION SD5/A4315	5 5 1/8 5 1/4 5 1/2 5 3/4	127 130 133 140 146	5 7/8 6	149 152
261 8 splines	EEI-5IR – I.R. 350R/DH5 – COP 54 – VOL500 – DIGGER 5 – NUMA – DRILLQUIP T35350 – BOART BH-55 – SECOROC 54/5 – MACH 501R – R.H. 51	5 5 1/8 5 1/4 5 1/2 5 3/4	127 130 133 140 146	5 7/8 6	149 152
270 8 splines	COP 52	5 5 1/8 5 1/4 5 1/2 5 3/4	127 130 133 140 146	5 7/8 6	149 152
287 12 splines	SANDVIK XL5	5 5 1/8 5 1/4 5 1/2 5 3/4	127 130 133 140 146	5 7/8 6	149 152
265 8 splines	HALCO MACH 50	5 5 1/8 5 1/4 5 1/2 5 3/4	127 130 133 140 146	5 7/8 6	149 152
324 8 splines	EEI-6M – MISSION SD6/A5315/PD6 – DIGGER 6 – DRILLQUIP T3653-15 – STENUICK ADEC 6M – BOHLER LH136 – BULROC BR6V – MACH 60M/66MLTA – NUMA 6M – R.H. 65M	6 6 1/8 6 1/4 6 1/2 6 3/4 7	152 156 159 165 172 178	7 1/4 7 1/2 8 8 1/2 8 5/8 10	184 190 203 216 219 254
327 12 splines	SANDVIK XL6	6 6 1/8 6 1/4 6 1/2 6 3/4 7	152 156 159 165 172 178	7 1/4 7 1/2 8 8 1/2 8 5/8 10	184 190 203 216 219 254
265 9 splines	COP 62	6 6 1/8 6 1/4 6 1/2 6 3/4 7	152 156 159 165 172 178	7 1/4 7 1/2 8 8 1/2 8 5/8 10	184 190 203 216 219 254
320 8 splines	HALCO MACH60/66	6 6 1/8 6 1/4 6 1/2 6 3/4 7	152 156 159 165 172 178	7 1/4 7 1/2 8 8 1/2 8 5/8 10	184 190 203 216 219 254
308 8 splines	EEI-6IR – EPLEY 6000 – DIGGER 6 – I.R. 360/SF6/DH6/DHD160 – COP 64 – SANDVIK XL6/PD6I – VOL 600 – NUMA 6 – DRILLQUIP T36 – R.H. 61 – SECOROC 6/64 – BULROC H51 – MACH 60/66IR	6 6 1/8 6 1/4 6 1/2 6 3/4 7	152 156 159 165 172 178	7 1/4 7 1/2 8 8 1/2 8 5/8 10	184 190 203 216 219 254
321 8 splines	EEI-8M – MISSION SD8/A6315 – COP 84LV – DIGGER 7 – DRILLQUIP T17 – SECORC 84LV – MACH 80M/88M – VOL 800 – R.H. 8M	7 1/8 7 1/2 8 8 1/2 8 5/8 9	181 190 203 216 219 229	9 7/8 10 11 12 12 1/4	250 254 280 305 311
350 10 splines	EEI-8IR – EPLEY 8000 – I.R. 380 – COP 84 – DIGGER 8 – NUMA 8 – DRILLQUIP T38 – SECOROC 84 – MACH 80IR – R.H. 81	7 1/2 8 8 1/2 8 5/8 9	190 203 216 219 229	9 7/8 10 11 12 12 1/4	250 254 280 305 311
350 8 splines	HALCO MACH 80	7 1/2 8 8 1/2 8 5/8 9	190 203 216 219 229	9 7/8 10 11 12 12_1/4	250 254 280 305 311
356 8 splines	EEI-10M – MISSION SD10	9 7/8 10 10 11 12	250 254 270 280 305	12 1/4 12 1/2 13	311 318 330
491 8 splines	EEI-12 – EPLEY 12000 – I.R. DHD111/DHD112 + DRILLQUIP T1120-112	12 12_1/4 13 13 1/2 13 3/4	305 311 330 343 350	14 3/4 15 17 1/2	375 381 445
468 8 splines	MISSION SD-12 – A100-15 – DRILLQUIP T1120-A – HALCO MACH 120	12 12 1/4 13 13 1/2 13 3/4	305 311 330 343 350	14 3/4 15 17 1/2	375 381 445
226 12 splines	EEI-15 – MISSION SD15	17 1/2 20 21 22 24	445 508 533 559 609
287 12 splines	MISSION SD-18 – DRILLQUIP T1180A	17 1/2 20 22 23 24	445 508 559 584 609	26 28 30 33	660 711 762 838

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