Trend Professional Slotting & Grooving Cutters Guided Variable Kerf Groover - 3mm to 5mm Cut Ref: 27/35X1/2TC Key Features: To adjust the groove width these tools can be re-assembled with the supplied shims and spacers inserted between the groovers, giving a 0.1mm increment in thickness Specification: D: 1 31/32 inch (imperial diameter) D; 50 mm (metric diameter) C: 3-5 mm (metric cut length) B: 28 mm (metric bearing diameter) E: 11 mm OL: 76 mm (overall length) Shank Diameter: 1/2 inch