SM Products TCT Hole Saw Shank Shape Pilot Drill - Hex 10 1/4-In X 3-1/4-In

Hex won’t slip in drill chucks.

Use with TCT, Bi-Metal, Tarantula™ or any threaded hole saw.
Rapidly eject the core at the touch of a button.
Change saws quickly and easily without tools. (Feature available for Hex 10 Arbors.)
Cut holes in a snap – even at an angle.
Use your hole saw as a guide to enlarge existing holes..