-Material: Common Corundum

-Size: 16 mm/20 mm/25 mm/35 mm/40 mm

-Shank Diameter: 6mm

Shape: Cylinder, Bullet Head, Grinding Wheel.

Features:

-Suitable for All Standard Drills, Cordless Screwdrivers, Pneumatic Grinder Clamping

-Grinding Needles Use Different Shapes of Stone, Glass, Wood Metal, Etc.

-Used for Grinding Tempered Steel, Alloy Steel, Cast Iron, Malleable Cast Iron, Cast Steel, Common Grinding Stone, Glass Wood Metal, Etc.