Stoppers for surgical drills

Stopper for surgical bone drills is made of medical titanium, in the form of a hollow cylinder.The stopper is attached to the end of the working part of the drill and correspond to the drill's diameter.
There are 5 sizes of stoppers (6 mm, 8 mm, 10 mm, 11.5 mm, 13 mm) for each drill diameter (of 30 stoppers). Stopper prevents deeper penetration of the drill in the bone than the set drilling depth.