Irwin Bi-Metal Hole Saws 5" Size:5" EXCELLENT FLOWING POWER - 12:1

EXCELLENT FLOWING POWER - 12:1 high thrust ratio delivers a thick adhesive flow

This advanced flexible intumescent acrylic latex fire stop sealant “intumesces” or expands when exposed to extreme heat

Durable epoxy-coated and rugged cast iron construction

Blades that do not match the mounting hardware of the power tool will run eccentrically

steel lifting saddle with 360 degree swivel

Irwin Bi-Metal Hole Saws 5" Size:5" EXCELLENT FLOWING POWER - 12:1Bi Metal Hole Saws Features: Variable depth gullets provide more efficient chip clearance 4 6 Variable pitch teeth for reduced noise and improved performance Electron beam weld for stronger, longer lasting teeth Bi metal construction for toughness and long life