Trend Two Flute Straight Cutters produce a cleaner finish than single flute cutters. Suitable for grooving rebating morticing drilling and shallow lateral routing cuts such as recessing hinges. Corners will require a final trimming square with a hand chisel or a corner chisel. Suitable for abrasive materials such as chipboard MDF plywood hardwoods and hard plastics.This Trend 4/8 x 1/2 TCT Two Flute Cutter has the following specification: D: 25.4mm (1in)C: 25mmOL: 68mmShank Diameter: 1/2inPTDTRE4812TC