1. 1/4inch(6.35mm) integral quick exchangeable hexagon shank to fit any brands' power tools
2. High carbon steel, fine heat treatment and hardened. Fine black finishing for better rustproofing
3. Precision milled cutting edges to avoid getting stuck and reduce clogging. Suggested rotary speed between 10,000 to 20,000 RPM. Not applicable for working on hard wood
4. Perfect for wood and rubber deburring, shaping and grooving
5. Whole set comes with plastic rail for easy storage and organization
Colour:black
Material:High-carbon steel
Package Contents:
10 x Grinding Files