Raised Lip: Easy start feature, accurate positioning without the risk of drill wander;Reverse Thread uses the turning of the drill to feed water to the cutting edge;The slotted edge allows water into the cut, extending drill bit life;Can be used with any type drill.

• Boa Diamond Tip Drill Bit 8mm With Water Reservoir

Boa Diamond Tip Drill Bit 8mm With Water ReservoirToolbank (First Order Account)