The 'Quadraset' with its four cutters enables you to cut grooves and dados from 1/8" through *23/32" (3.2MM-18.0MM) in increments of 1/32" (0.1MM). Tongue & Groove can also be achieved with proper set-up. Fully diagrammed instructions included for both fractional and metric sizes. Complete with four cutters (1/8" 5/32" 3/16" 1/4") arbor ball bearing guide spacers and shims. For different depth of cut see 'vari-depth bearings listed below.