Milwaukee recessed light hole saws are manufactured using carbide grit for cutting through drywall plaster acoustical tile wood and stucco with mesh. Made with a continual rim these saws wont tear material and will leave a clean finish. Continual rim for clean cuts Carbide grit edge for abrasive materials Solid welded construction provides accurately sized holes Open back for easy plug removal Use to install 5 recessed light fixtures requiring a 5-3/8 hole (1) High-Speed Steel Pilot Bit (1) Manual Hole Diameter : 5-3 / 8 Thread : 5 / 8-18 Pack Qty : 1 Depth of Cut : 1 Recommended RPM : 600