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High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications

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High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications

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Brand Name : MIROC

Model Number : 4°, 6°, 7°, 11°, 12°

Certification : ISO

MOQ : 1

Price : 8.5

Supply Ability : 3000

Delivery Time : 20-30

Series : Taper Button Bit

Advantage : High-efficiency

Quality : High-Quality

Color : Customer's Requirement

Application : Coal Drilling

Usage : Small Hole Drilling

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Product Name: Taper Drill Bit

Key Features

  • Tapered design allows bit change without changing the drill rod

  • Cross-type taper bit is preferred for minimizing hole deviation in small-hole drilling

  • Smaller taper angle prevents bit spinning (affects "knock-off" index)

  • Suitable for drifting and tunneling

Technical Specifications



Parameter Details
Taper Degree 4°, 6°, 7°, 11°, 12°
Diameter 26mm – 41mm (1" – 1 3/5")
Drill Bit Type Chisel bit, Button bit, Cross bit
Carbide Insert Shape Spherical, Ballistic
Button Bit Skirt Design Short skirt, Long skirt
Chisel Bit Subtypes Standard chisel, Oblique chipways, Flat chipways, Oblique flat chipways
Material High-strength alloy steel bar + Tungsten carbide
Color Green, Blue, Gold, Black (or customized)

Applications

  • Small-hole rock drilling

  • Custom designs available for specific applications

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


High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications

High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications

High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications

High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications

High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications


Quality High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications for sale

High-efficiency 26-41mm Diameter Taper Drill Bit for Small Hole Drilling in Mining Applications Images

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