7 Degree 6 Buttons T6 Carbide Insert Rock Drill Taper Button Bit Tunneling 40mm Drill Bits

 Bits Type

    Chisel Bits

   Cross Bits

   Button Bits

Bits Diameter  

                 26~43mm

                  28~51mm

                   28~45mm

Tapper Degree

           7º,11ºand 12º

Chisel Bits

Cross Bits

Button Bits

Taper Degree

7º

7º, 11º and 12º

7º, 11º and 12º

Bits Socket Diameter

mm

23

23

22

inch

27/32

27/32

7/8

Bit Diameter

mm

26 ~ 43

28 ~ 51

28 ~ 45

inch

1 1/32 ~ 1 45/64

1 7/64 ~ 2

1 7/64 ~ 1 25/32

Remark

There are horseshoe and oblique chipways designs;
To drill media hard, hard and crack not grown formation with rock hardness not above f15 and in place where the compacting power of the rock drill doesn’t exceed 8Kg/MPa

To drill hard, very hard and crack grown formation

There are short skirt, average long skirt and enhanced long skirt;
with hemi-spherical or parabolic inserts configurations;
to drill all rock formations except very hard and abrasive formations

Notes:

1. Special sizes may be available upon request;

2. Choose big and high carbide bits, when work with high impact rock drills, to improve anti-percussive capability of the inserts;

3. Work with soft formation, use extreme hard carbide inserts bits to get high penetration; while work with hard formation, use sub-hard carbide inserts bits to avoid inserts breaking; work with erosive formation, use anti-resistance alloy carbide inserts;

4. The taper degree of the bits must be the same as the taper rods that it is planned to work with.