Description
Thread R28 (1 1/8")
Bit Diameter: 38mm-45mm
Length of drill rod: 2800mm-4310mm
Button bit design: Flat face, drop centre, Normal and Retrac body.
Tungsten carbide (Buttons): Spherical, Ballistic and Conical.
Applications: Drifting, Tunneling, Bench
We have different designs for various rock formations, longer service life to decrease use costs for users.
Button Bit ( R28) |
D |
Flushing hole (mm) |
Buttons (mm) |
Angle |
Class |
Part No. |
|||
mm |
inch |
Gauge |
Front |
Gauge |
Front |
||||
|
38 41 43 45 |
1 1/2” 1 5/8” 1 11/16” 1 3/4” |
2×5 2×5 2×5 2×5 |
1×5 1×5 1×5 1×5 |
5×9 5×6 5×10 5×11 |
2×7 2×8 2×8 2×9 |
30° 30° 30° 30° |
H H H H |
3038R2807 3041R2807 3043R2807 3045R2807 |
|
41 |
1 5/8” |
2×5 |
2×5.5 |
6×9 |
2×8 |
30° |
S |
3041R2808 |
|
43 45 |
1 11/16” 1 3/4” |
—— 1×5 |
3×5 3×5 |
6×9 6×10 |
3×8 3×8 |
30° 30° |
M M |
3043R2809 3045R2809 |