Dri Vacuum Drill Bits DRI-8

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Dri Vacuum Drill Bits™ DRI-8 are optimal for coring block. Dri Vacuum Drill Bits™ feature a large threaded adapter with 1-1/4" 7 threads/inch for maximum-size vacuum holes. The non -slotted tube design ensures suction at the cutting tip of the drill bit, while the reduced core travel length (10") allows for easier start-up and low side run-out. Show more