For the weekend woodworker to use on all table and radial arm saws for cutting slots, grooves, dadoes and rabbets in soft or hardwood. For underpowered saws because requires less power to feed. Negative hook angle makes flat bottom groovesand virtually splinter-free cuts. Anti-kickback design. Resharpenable set produces grooves from 1/4" to 13/16" in 1/16"increments. Includes 2 outside blades, four 2-wing 1/8" chippers and one 1/16" chipper; 1/8" kerf.