7 / 11 / 12 Degree Tapered Button Bits Small Rock Drill Bits

7 / 11 / 12 Degree Tapered Button Bits Small Rock Drill Bits

Tapered Rock Drill Bits we have three types: taper chisel bit, taper cross bit and taper button bit. It's suitable for H22mm and H25mm taper rock drill rods use. It have three taper degree: 7°, 11°, 12°. It's widely used for hard rock(f=8~18) drilling use. Taper button bits is the best sales product.

Taper Chisel Bits: 

1) Tapered connection: 7,11,12 

2) Alloy steel:42CrMo

3) Suitable carbide tips:YK20

4) Chisel bit diameter: 30-80mm

5)Technology:hot-pressing or welding

Taper Button Bits: 

1) Type: Taper button bits

2) Shank Hex.Size: 22mm,25mm

3) Diameter: 30-42mm.

4) Taper degree: 7°11°12°

5) Buttons quantity: 4, 5, 6, 7, 8

6) Package: Plastic case, wooden case.

Taper Cross Bits: 

1) Tapered connection: 7,11,12

2) Chisel bit diameter: 30-60mm

3) Technology:hot-pressing or welding

4) Bit Body: Short skirt and Long skirt

5) Tapered drill rod: H22/H25*108mm