Milwaukee Tool Hole Saw Small Thread Arbor - 3/8" Shank fits drill chucks 3/8" and larger and all hole saws up to 1-3/16". Its durable hardened steel construction ensures that you always get cleanly cut holes. 

Features/Specifications

• 3/8" hex shank for gripping capability in the chuck 
• Durable hardened steel construction
• Quad Edge Tip designed to decrease heat build-up & drill faster
• 135° split point for precision start no walking
• For the toughest applications where standard pilot bits don't hold up
• Drills through stainless steel, cast iron, wood, metal & abrasive materials
• For best performance use with Milwaukee Tool Carbide Teeth Hole Saws
• Compatible with hole saws 1-1/4" & larger
• Fits all hole saws up to 1-3/16"
• Fits all drill chucks 3/8" and larger
• Shank Size: 3/8"
• 10X Longer Life vs. Standard Pilot Bits
• 1/4" x 3-1/2" Cobalt Pilot Bit works with all Milwaukee arbors