Surgical Drill Handpiece with Adjustable Cutting Tool Guard

A system includes a handpiece and a removable tool assembly including a holder body, a shaft, a medical tool, a guard, and a sleeve. The body engages the handpiece and defines a bore. The shaft extends within the bore and the tool is provided to the distal end of the shaft. The guard is coupled to the body via a snap fit connection at the bore and may be friction fit to a bearing sleeve located between the guard and the shaft, such that longitudinal translation of the guard relative to the body longitudinally displaces the guard. The shaft extends within the bore of the body and the guard. The guard is positioned relative to the body by a distance to define a working length of the tool between the distal end of the guard and the distal tip of the tool. The working length of the tool may be used to cut tissue, without concern that cutting will be deeper than intended.