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.
Thin tube and segments with lighter weight enables smooth and rapid drilling especially for handheld applications.

Packaging Height: 2.52 in
Packaging Length: 12.244 in
Packaging Width: 2.52 in