DiamondSure Drill Bit 1-1/2″
- 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.