CMT's Industrial PTFE-Coated 4" biscuit joiner blades features CMTâ€™s trademark PTFE Industrial coating make biscuit joints quickly and easily. Highgrade German steel and 8 micrograin carbide-tipped teeth guarantee years of use. These blades fit LamelloÂ®, DewaltÂ®, Porter-CableÂ®, SkilÂ®, BoschÂ® FreudÂ® and other popular biscuit joiner models. Select your item(s) below then click Add to Cart.CMT's Industrial PTFE-Coated Blades - designed for the professional woodworker and construction craftsman CMT's thin-kerf industrial quality blade line delivers an outstanding cut, minimal stock removal and creates the least possible stress to your saw! FINEST MICROGRAIN CARBIDE - Cutting teeth are made from the finest grade of micrograin carbide which stay sharper longer and provide greater resistance to impact. TRI-METAL BRAZING - The Silver-Copper-Silver tri-metal brazing tipping process lets the teeth withstand severe impact caused by cutting harder woods and composite material.