3-1/4-In. Bi-Metal Hole Saw SOLO Keystone Thumb

Keystone Thumb

Never stand in line with ropes under tension

Keeps seedbed moist while concealing seed from birds

Aluminum Oxide Grinding Stone

Seals punctures for up to 2 years

3-1/4-In. Bi-Metal Hole Saw SOLO Keystone ThumbMaster Mechanic, 1 Piece 3 1 4" Bi Metal Hole Saw, M3 High Speed Steel Cutting Edge, 1 7 8" Depth Of Cut, 4 6 Variable Tooth Pattern Provides Less Vibration, Delivering Faster, Smoother Cuts Then Conventional Hole Saws, Features Built In 3 8" Mandrel Which May Be Used With 3 8" Or Larger Drill, Recommended For Cutting Soft Or Hard Wood, Nail Embedded Wood, Stainless Steel, Pipe, Rubber & Conduit, Pilot Drill Included.