Diablo Bi-Metal Oscillating Blade for Insulation Option:3-1/2 in. Universal Fit Diameter - 4"

Diameter - 4"

Axial Shear-face grind design cleanly shears through material for a superior quality finish

Diablo's hole saw system and mandrel design simplify the attachment process for fast and efficient hole saw mounting

1/2" wood plug

Diablo Bi-Metal Oscillating Blade for Insulation Option:3-1/2 in. Universal Fit Diameter - 4"Diablos bi metal oscillating blades feature application specific designs that deliver maximum durability and longer life when cutting insulation. These high performance blades feature an ultra hardened cutting edge to deliver up to 5X longer life than standard blades. The serrated blade provides faster, cleaner cuts in insulation. Curve contact edge creates a pilot for precise, clean plunge cuts with less vibration. Tool free quick change interface