The DW660 has a 5 Amp, 30000 RPM motor that cuts through drywall, plywood, ceramic tile, plexiglas, cement board, countertops and acoustical ceiling tile. It can generate up to 25% more power when cutting double board or windows. The machine offers a tool-free bit change which saves time looking for lost wrenches and the bump-off-style switch is dust-sealed to prevent contamination. The other features include a slim body design, adjustable guide, a 10 ft. rubber cord with internal cord clamp and a jam pot design, making the tool job site tough. It includes cutout tool, shoe, drywall bit, general purpose bit and 1/8 and 1/4 collets.