5/8 Inch 16.1 mm DiamondSure Diamond Drill Bit Hole Saw for Glass, Tile, Granite, Ceramic, Porcelain, Stone by DiamondSure

Description

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.