Trend Professional Slotting & Grooving Cutters Guided Variable Kerf Groover Set - 5mm to 9mm Cut Ref: 27/59X1/2TC 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 Items included:: Mounted on the cutter 5 x 1mm shims 1 x 6mm spacer In a separate bag Shims 2 x 0.05mm 5 x 0.1mm 1 x 0.5mm Specification: D: 1 31/32 inch (imperial diameter) D; 50 mm (metric diameter) C: 5-9 mm (metric cut length) B: 28 mm (metric bearing diameter) E: 11 mm OL: 76 mm (overall length) Shank Diameter: 1/2 inch