Starrett XA17-38 Locking Arbor with Carbide Tipped Pilot Drill 8.75mm / 11/32" Hex Shank

Fits hole saw sizes 32 - 210mm / 1.1/4 - 8.9/32".
Arbor locks tightly on the saw eliminating vibration.
Invaluable on exceptionally tough jobs and production runs.
Recommended for use with specific Diamond Grit Holesaws.