Vary the spacing and combinations of slot cutters in this set to produce dado, rabbet, tongue-and-groove, even slots for biscuits. Vary the spacing and combinations of slot cutters in this set to produce dado, rabbet, tongue-and-groove, even slots for biscuits. Our Slot Cutter Set cuts virtually any groove from 1/8" to 11/16" or use any single cutter for precise grooves. Comes with a 7/8" diameter bearing allowing for a 1/2" depth of cut. Max. safe operating speed is 18,000 RPM. Items included in the set: - 1/8" Thick Slot Cutter - 5/32" Thick Slot Cutter - 3/16" Thick Slot Cutter - 1/4" Thick Slot Cutter - 7/8" Diameter Bearing for a 1/2" cutting depth