Diamond Sure Tile Drill Bit - 1/4"

• Bonded Diamond Grit: Electroplate bonded diamonds for optimum diamond life.
• Nickel Plated: Reduces bit friction and heat build-up and inhibits rust.
• Grooved Tip Edge: Provides maximum surface area & increases water "churn" for tip lubrication.
• Tip Lubrication Hole: Provides optimum tip lubrication by allowing water flow in and out of bit.
• Core Extraction Hole: Special holes in back of the "Bell" allow easy removal of cores or plugs.

DiamondSure Drill Bits * DiamondSure bonded diamond core drill bits cut through materials where other bits fail. They are designed to drill in the hardest surfaces or the most delicate and fragile. * DiamondSure bits can be used in any standard variable speed drill. They are electroplated, blonded and designed for drilling to depths of about 1/2" in ceramic tile, porcelain tile, glass block, slate, marble, quartz, granite, limestone and more! Not designed for use on concrete, masonry, metal or for use with impact hammer drills.