1-7/8" X 1/4" Carbide-Tipped Tongue And Groove Router Bit, Bosch 84624Mc. Product Description Through 80 years of developing innovative tools and accessories for the concrete professional, BOSCH has become the acknowledged leader in the industry. with a robust line that can address everything from the toughest concrete drilling tasks to material removal, BOSCH is a company whose legacy is written in concrete. If the project requires work in concrete, from polishing and anchoring to material removal, there's only one place to turn for a complete solution. Trust BOSCH to provide the professional-grade tools and accessories to get the job done right. Ideal for large-area material removal of lime, plaster, hard finish plaster, sandstone, and abrasive concrete.. The hard metal binding even resists loads caused by strongly abrasive materials.. Optimal use-asphalt, fresh concrete, pumice stone, screed concrete, aerated concrete, plaster, cast asphalt, soft limestone, and plaster mortar. May be used on-basalt, old concrete, stone concrete pipes, natural limestone, quartzite, and sandstone. From the Manufacturer Carbide tipped tongue and groove bits are micrograin bits designed to cut tongue and grooves on 1/2" through 3/4" thick material. To cut the tongue, use the complete assembly; to cut the groove, remove one slotting cutter Designed to cut tongue and grooves on 1/2 In. through 3/4 In. thick material Full assembly used to cut the tongue; removing one slot cutter will cut the groove Micrograin carbide tips provide superior wear resistance and long life Recommended for use with a router table Replacement cutter is 85610M