Spyder 600043CF 4-1/8" Tungsten Carbide Tipped (TCT) Non-Arbored Hole Saw Rapid Core Eject™ Size:4-1/8" Adjusted and tighten to size

Adjusted and tighten to size by twisting knurled nut

K-T cutting tips are made from high quality copper and brass bar stock

construction silicone sealant

Rugged T prene insulation provides resistance to abrasion

and hardened nails

Spyder 600043CF 4-1/8" Tungsten Carbide Tipped (TCT) Non-Arbored Hole Saw Rapid Core Eject™ Size:4-1/8" Adjusted and tighten to sizeUp to 10x more cuts and up to 5x faster than standard bi metal hole saws Spyders Rapid Core Eject arbor system ejects cores without prying, quickly changes diameter, cuts at an angle, and enlarges existing holes Drill wood, MDF, plywood, fiber cement board, porous concrete block, some brick, ceramic wall tile, plastic, PVC and more Spyders Tungsten Carbide Tipped (TCT) hole saws cut more materials up to 5x faster and make up to 10x more cuts lasting