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.

Available in a variety of sizes, so that you can get exactly what you need. 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 BurLife®.

  • Brand : Rio Grande
  • Material : High-speed steel
  • Head size : 1.7mm (.0670")
  • Shank size : 1.7mm (.0670")
  • Article no. : 51
  • Country of origin : China

Catalog page: 2020-2021 Tools and Equipment Catalog p.425