DTH Bit Sub Adapter
Photo for Adapter 114mm OD x 305mm S-S length, 3 1/2" API Reg Pin & 3 1/2"
API Reg Box:
Bit sub adapter 138mm OD x 610mm S-S length, 4” BECO Pin & 3 1/2"
API Reg Box and
Bit Adapter (stabilizer) 6 1/2" OD x 35 inch shoulder to shoulder
length x 4” BECO Pin & 4 1/2" API Reg Box
Adapter Thread Photo:
Bit Sub Adapter Type
1. Box-Box Adapters
(For use with DTH hammers)
Box-Box Adapters Specification:
2. Pin-Box Adapters
(For use with DTH hammers)
Pin-Box Adapters Specification:
3. Pin-Pin Adapters
(For use with DTH hammers)
Pin-Pin Adapters Specification:
Underground Mining DTH Drilling Tools Drill Sub / DTH Adapter
In DTH drilling, the rock drilling bit is a continuation of the
shank, which the rock drill piston strikes directly. Since the
piston is in direct contact with the drill bit, little energy is
lost. This gives DTH drilling a nearly constant penetration rate
regardless of hole length.
More Bit Sub Adapter Specification:
| DTH Subs Specification |
| Female- Male |
| Female A | Male B | Diameter A | Diameter B | Length | Wrench flat | Weight | Part Number |
| mm | mm | mm | mm | kg |
| 2 3/8"API Reg | 2 3/8"API Reg | 77 | 77 | 140 | 65 | 4.0 | 4148301570 |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 140 | 65 | 5.5 | 4148301571 |
| 2 3/8"API Reg | 2 3/8"API Reg | 102 | 102 | 130 | 76 | 7.8 | 4148301572 |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 144 | 65 | 5.5 | 4148301573 |
| 2 3/8"API Reg | 2 3/8"API IF | 95 | 95 | 130 | 65 | 8.0 | 4148301574 |
| 2 3/8"API Reg | 2 7/8"API Reg | 90 | 102 | 120 | 95 | 10.5 | 4148301575 |
| 2 3/8"API IF | 3 1/2"API Reg | 90 | 90 | 164 | 65 | 6.8 | 4148301576 |
| 2 7/8"API Reg | 2 3/8"API Reg | 90 | 90 | 154 | 65 | 6.5 | 4148301577 |
| 2 7/8"API Reg | 2 3/8"API Reg | 90 | 115 | 120 | 95 | 11.0 | 4148301578 |
| 3 1/2"API Reg | 3 1/2"API Reg | 115 | 115 | 219 | 95 | 12.5 | 4148301579 |
| 3 1/2"API Reg | 2 3/8"API IF | 115 | 115 | 160 | 95 | 10.5 | 4148301580 |
| 3 1/2"API Reg | 2 7/8"API Reg | 115 | 115 | 160 | 95 | 10.8 | 4148301581 |
| 3 1/2"API Reg | 2 7/8"API IF | 115 | 115 | 160 | 95 | 10.8 | 4148301582 |
| 3 1/2"API Reg | 3 1/2"API Reg | 115 | 115 | 160 | 95 | 10.5 | 4148301583 |
| 3 1/2"API Reg | 4 1/2"API Reg | 146 | 146 | 132 | 120 | 16.5 | 4148301584 |
| 4 1/2"API Reg | 3 1/2"API Reg | 146 | 115 | 235 | 95 | 19.0 | 4148301585 |
| F48×10 | F42×10 | 59 | 59 | 203 | 40 | - | 4148301586 |
| F48×10 | F48×10 | 59 | 59 | 203 | 40 | - | 4148301587 |
| F48×10 | 2"API Reg | 59 | 59 | 203 | 40 | - | 4148301588 |
| Female - Female |
| Female A | Male B | Diameter A | Diameter B | Length | Wrench flat | Weight | Part Number |
| mm | mm | mm | mm | kg |
| 2 3/8"API Reg | 2 3/8"API Reg | 77 | 77 | 200 | 65 | 4.5 | 4148301589 |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 200 | 65 | 6.0 | 4148301590 |
| 2 3/8"API Reg | 2 7/8"API Reg | 90 | 90 | 225 | 65 | 6.2 | 4148301591 |
| 2 3/8"API Reg | 3 1/2"API Reg | 115 | 115 | 210 | 95 | 10.0 | 4148301592 |
| Male - Male |
| Female A | Male B | Diameter A | Diameter B | Length | Wrench flat | Weight | Part Number |
| mm | mm | mm | mm | kg |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 70 | 65 | 4.6 | 4148301593 |
| 2 3/8"API Reg | 3 1/2"API Reg | 90 | 115 | 97 | 95 | 9.0 | 4148301594 |
| 3 1/2"API Reg | 3 1/2"API Reg | 115 | 115 | 90 | 95 | 10.0 | 4148301595 |
Sub Bit Adapter Package:
Applications
• Underground mining
• Quarry benching operations
• Water well drilling
DTH Accessories
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