Item Type: Beveling Chamfer Bit Material: Emery Opening Diameter: Approx. 50mm / 1.97in Opening Hole Depth: Approx. 48mm / 1.89in Shank Diameter Specification: Approx. 15mm / 0.59in Shank Type: Round shank 1FOR VARIOUS MATERIAL: Beveling chamfer bit is used for granite, marble, tile and many other material, useful and practical 2EXISTING HOLES ENLARGING: Designed to enlarge, shape or chamfering existing holes in round porcelain, hard ceramic 3USED FOR CHAMFERING: This bevel chamfering bit can chamfer coarse holes in glass, stone, ceramic and ceramic tile 4PRACTICAL AND CONVENIENT: This is a practical tool because with just one standard coring bit and this finger bit, you can create many different sized holes without having to buy multiple different coring bits 515MM ROUND SHANK: Come with round shank, shank diameter specification is 15mm. Hole diameter is less than or equal to 50mm, hole depth is less than or equal to 48mmPay attention to the correct operation.1 x Beveling Chamfer Bit