Dewalt DWD014-IN 550W 10mm VSR DrillVariable speed switch control to suit different materials. "Lock on"" button gives the user the option to keep the machine continually running when doing repetitive operations. Trigger sensitive variable speed switch allows a user to drill slowly for precision accuracy when starting to drill a hole. An excellent power to size ratio results in a powerful, durable drill in a compact size. Improved sealing for maximum protection from dust ingress