Trend Professional Single Flute Router Cutter 2/66LX12MM - Pocket 8MM Diameter 8mm diameter x 19mm cut x 12mm shank Key Features: Single flute cutter with an extra long shank Deep grooving, rebating and mortising Useful for template work when thickness of template restricts depth Extra care must be taken to avoid breakage Take more passes than usual, and only cut up to half the diameter of the cutter in one pass Cutter has a narrow neck Specification: D: 5/16 inch (imperial diameter) D: 8 mm (metric diameter) C: 19 mm (cut length) C2: 19 mm (cut length) OL: 71 mm (overall length) Shank Diameter: 12 mm