2 pins for quick changes of holes saws:
Shank Size 3/8" - Hex Power Shank
Thread 5/8" - 18 Thread
Fits Hole Saws 1-1/4" - 6"
Fits Pilot Drills 1/4" x 3-1/16"
Weight 0.54 lbs
Cuts Stainless & Mild Steels, Wood with Nails, Plastic