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Quick Details

  • Place of Origin: Tianjin, China (Mainland)
  • Brand Name: Tianshui
  • Model Number: Taper rock drill bits
  • Type: Drill Bit
  • Machine Type: Drilling Tool
  • Certification: API, ISO9001 CE
  • Material: Carbide
  • Processing Type: Forging
  • Use: Ore Mining, rock drilling
  • Tapered connection: 7,11,12 degree
  • Alloy steel: 42CrMo
  • Tungsten Carbide: YK20 YK15.6 YK05 YG8
  • Process: Hot-pressing or welding
  • Diameter: 28~60mm
  • Packing: 50pcs/case

Packaging & Delivery

Packaging Details wooden box, plastic box, carton box,
Delivery Time 5-7 days

28mm-60mm Tungsten Carbide Rock Drill Bits


7° 11° 12° Taper 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.



7° 11° 12° Taper Rock Drill Bits

Button Bits:


1) Type: Tapered button bits

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

3) Diameter: 30-42mm.

4) Taper degree: 7°11°12°

5) Qty of buttons: 4, 5, 6, 7, 8

6) Package: Plastic case, wooden case.


7° 11° 12° Taper Rock Drill Bits

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

7° 11° 12° Taper Rock Drill Bits

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



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