Honing Stone - 6" x 1/2" x 1/4"

The Challenge honing stone is used to remove burrs from paper drill bits. The stone has a fine sanding surface to delicately smooth out any imperfections on the outside diameter of the drill bit cutting edge.

Compatible with all drill bits including Challenge, Lawson, Nygren Dahly (Baum), Hang, Iram, Spinnet and more.

Dimensions: 6 in. x 0.5 in. x 0.25 in. (152 x 12.7 x 6.35mm)