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Litian Heavy Industry Machinery Co., Ltd
Litian Heavy Industry Machinery Co., Ltd
Small Hole Drilling Tools

Small Hole Drilling Tools

Small Hole Rock Drilling Tools Specification


Tapered Drill Bit

Taper

7°, 11°, 12°

Bit Type

Tapered button bit, Chisel bit, Cross type bit 

Head Diameter

28mm~48mm

Tapered Drill Rod

Taper

7°, 11°, 12°

Rod Diameter

Hex22, Hex25

Length

400mm-5500mm

Integral Drill Rod

Rod Diameter

Hex19, Hex22

Bit Diameter

24mm~40mm

Shank Length

108mm

Effective Length

400mm~6400mm


Contact Drill Rod Factory
Litian Updates
May 24-2026
Sandvik vs Atlas Copco Shank Adapters: A Compatibility Guide for Rock Drilling Professionals
Shank adapters (also called striking bars) are the critical bridge between a rock drill and the drill string. They sit inside the drill's chuck housing, absorbing the piston's direct blows and...
May 18-2026
Shank Adapter Selection Guide: Matching Rock Drill to Thread
A shank adapter (also called a striking bar) is the critical interface between the rock drill's percussion mechanism and the drill string. It transmits impact energy, rotation torque, feed force, ...
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Button Bit vs Reamer Bit: Choosing the Right Tool for Efficient Rock Drilling
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