Drill Bits

High-speed steel twist drills. Available individually, or in a mix pack with one of each size. Select from drop-down menu.  #51 (1.7mm)#55 (1.32mm)#59 (1.04mm)#65 (0.89mm)#67 (0.81mm) These high-speed steel drills are precision ground from solid stock, and tempered to a hardness of HRC 62–64 for precise results and lasting performance. The drill size is the same as the shank size, with diameter tolerances of +0/-0.015mm. Use these drills with adjustable chuck handpieces or in a drill press. To further prolong tool life and for even smoother cutting, we recommend using these drills with a lubricant.