We offer discount for large quantity. Welcome to us!10Pcs Spear Point Head Ceramic Marble Tile Drill Bit for Glass 6MM Round Shank Drilling Bathroom Tile Tools Feature-This drill bit is suitable for drilling 6mm holes for glass, tile, china, ceramic bathroom tile drilling and so on. Size-length: 7cm, drill diameter: 6mm, weight: 94gNote-pour water on the area to be drilled. Never let the drill overheat, take small breaks to let it cool by submerging it in cold water. Don't apply too much pressure or your tile/glass will break – just let the drill do the work. Drilling holes without water will cause excessive heat generated during the drilling process and may cause the bit to become blunt and lead to poor drilling performanceColor: SilverThe hardness of the material and operator determines the overall performanceDo not apply too much pressure or your plate/glass will break-just let the drill do the workUse only the rotary action, not the hammer action wear safety gogglesMaterial: alloyPackage Included: 10X DrillNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/