Trend Professional Single Flute Router Cutter 2/45x1/4TC - Eccentric Single Flute Tungsten Carbide Cutter 5mm diameter x 19mm cut x 1/4" shank Key Features: Cutters are chosen for fast free cutting, when cutting speed takes preference over finish Cutters of 2.0mm diameter and below should have a maximum of 1.0mm depth of cut per pass Small diameter tools must be handled with care to avoid breakage Single flute cutters should not be used in eccentric chucks TCT (Tungsten Carbide Tipped) Specification: D1: 5 mm (diameter) C: 19 mm (cut length) OL: 51 mm (overall length) Shank Diameter: 1/4 inch