1/2 (12.7mm) Shank Architectural Molding Router Bit Profile Edge Cutter Set

Shank Material: High Speed Steel. Shank: 1/2" (12.7mm). 6mm-100mm Diamond Hole Saw Cutter Drill Bit Set for Tile Glass Ceramic Marble. High Speed Steel Body. Cutting sharp, smooth rotation, brisk operation.

eBay