11Degree 38mm Ballistic Small Hole Rock Drilling Tapered Drill Button Bit

Product Name

Taper Drill Bit

Taper Degree

4°, 6°, 7°, 11°, 12°

Diameter

26mm - 41mm (or 1 inch to 1 3/5 inch)

Drill Bit Type

Chisel bit, button bit, cross bit

Carbide Insert

Spherical and ballistic

Button Bit's Skirt Design

Short skirt, long skirt

Chisel Bit Type

Standard chisel bit, oblique chipways chisel bit,
flat chipways chisel bit, oblique flat chipways chisel bit

Material

High strength alloy steel bar and tungsten carbide

Color

Green, Gold, Black or based on customer requirements.

Small HoleDrilling Tools

Taper Degree

The NumberOf Button

Bit Dia.(mm)

Skirt

Weight(kg)

Tapered

4

32-42

Short Skirt

0.24-0.43

6

34

Short Skirt

0.29

7°

7

32-42

Short Skirt

0.26-0.43

7

32-41

Long Skirt

0.30-0.42

4

32-40

Short Skirt

0.24-0.40

11°

5

38-40

Short Skirt

0.39-0.40

6

33-36

Short Skirt

0.25-0.36

7

32-41

Short Skirt

0.24-0.41

7

32-41

Long Skirt

0.30-0.42

8

33-35

Long Skirt

0.31-0.35

12°

4

28-30

Short Skirt

0.20-0.22

5

28-30

Short Skirt

0.20-0.22

6

30-38

Short Skirt

0.22-0.40

7

32-38

Short Skirt

0.24-0.40

7

32-41

Long Skirt

0.30-0.42

8

33-35

Long Skirt

0.31-0.35