ITEM NAME:6pcs Glass Drill Bits Set Tile Ceramic Drilling Set 3/4/5/6/8/10mm with 1/4 C4V2 6pcs Glass Drill Bits Set Tile Ceramic Drilling Set 3/4/5/6/8/10mm with 1/4 C4V2 The drill bits are especially for glass, ceramics, tiles and other hard and brittle work surface, suitable for accurate centering drilling, they will not break the porcelain. Smooth cutting: the sharp cutters cut smoothly without leaving burrs, and the drilling speed is fast. The hex shank design makes it more stable and non-slip, suitable for ordinary hand drill and bench drill. Hex Shank Diameter: 6.35mm (1/4 inch) Cutting bits length: 3/4/5/6/8/10mm Handle length: 68.6mm, 69.7mm, 75mm, 75.5mm, 80 mm, 84mm Handle diameter: 2.5mm, 3.1mm, 4mm, 4.5mm, 5.4mm, 6.9mm Cutting bits material: metal Handle material: carbon steel Color:gold Package includes 6 * glass drill bits Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.