T38 T45 T51 body Mitsubishi Body Atlas Body Hard Rock Drilling Retrac bit
This type of bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations (between 200 Mpa to 260 Mpa compressive strength). Featuring spherical tungsten carbide inserts that is known to have strong configuration against carbide fracture. Recommended for eliminating hole deviation. Used in benching and long hole drilling.
THREADED ROCK DRILLING TOOLS - T38 | ||||||||
Drill Bit | Diameter | Buttons and Size (mm) | Flushing hole | Weight | ||||
mm | inch | Front | Gauge | Angle | front | Side | kg | |
Retrac button bit | Spherical | |||||||
![]() | 64 | 2 1/2 | 4×10 | 8×10 | 30° | 2 | - | 2.2 |
64 | 2 1/2 | 3×10, 1×10 | 6×11 | 35° | 3 | - | 2.2 | |
70 | 2 3/4 | 4×11 | 8×11 | 40 | 2 | - | 2.4 | |
70 | 2 3/4 | 3×10, 1×10 | 6×13 | 35° | 3 | - | 2.4 | |
70 | 2 3/4 | 4×10, 1×10 | 8×11 | 35° | 4 | - | 2.4 | |
76 | 3 | 4×11 | 8×11 | 40 | 2 | - | 3.3 | |
76 | 3 | 4×11, 1×11 | 8×10 | 35° | 4 | - | 3.3 | |
76 | 3 | 4×11, 1×11 | 8×12 | 35° | 4 | - | 3.3 | |
89 | 3 1/2 | 4×13 | 8×13 | 40 | 2 | - | 4.8 | |
89 | 3 1/2 | 5×13 | 8×13 | 35° | 2 | - | 4.8 | |
89 | 3 1/2 | 6×11 | 8×12 | 35° | 2 | - | 4.8 | |
89 | 3 1/2 | 4×11, 1×11 | 8×13 | 35° | 4 | - | 4.8 | |
89 | 3 1/2 | 4×13, 1×13 | 8×13 | 35° | 4 | - | 4.8 | |
Ballistic | ||||||||
64 | 2 1/2 | 4×10 | 8×10 | 30° | 2 | - | 2.2 | |
64 | 2 1/2 | 3×10, 1×10 | 6×11 | 35° | 3 | - | 2.2 | |
70 | 2 3/4 | 4×11 | 8×11 | 40 | 2 | - | 2.4 | |
70 | 2 3/4 | 3×10, 1×10 | 6×13 | 35° | 3 | - | 2.4 | |
70 | 2 3/4 | 4×10, 1×10 | 8×11 | 35° | 4 | - | 2.4 | |
76 | 3 | 4×11 | 8×11 | 40 | 2 | - | 3.3 | |
76 | 3 | 4×11, 1×11 | 8×10 | 35° | 4 | - | 3.3 | |
76 | 3 | 4×11, 1×11 | 8×12 | 35° | 4 | - | 3.3 | |
89 | 3 1/2 | 4×13 | 8×13 | 40 | 2 | - | 4.8 | |
89 | 3 1/2 | 5×13 | 8×13 | 35° | 2 | - | 4.8 | |
89 | 3 1/2 | 6×11 | 8×12 | 35° | 2 | - | 4.8 | |
89 | 3 1/2 | 4×11, 1×11 | 8×13 | 35° | 4 | - | 4.8 | |
89 | 3 1/2 | 4×13, 1×13 | 8×13 | 35° | 4 | - | 4.8 |