Dri Vacuum Drill Bits DRI-8

Dri Vacuum Drill Bits™ DRI-8 optimal for coring block

Dri Vacuum Drill Bits™ have a large threaded adapter with 1-1/4"7 threads/inch for maximum size vacuum hole. Non-slotted tube design to ensure suction at the cutting tip of the drill bit. Reduced core travel length (10") for easier start-up and low side run-out.