How to Sharpen Drill Bits with a Bench Grinder

You can use a bench grinder to sharpen drill bits, especially those used for drilling into metal. Here are four steps that will help you complete the job.

Gather Supplies

You will need the supplies below.

  • Grinder
  • Leather gloves
  • Pliers
  • Water in a container
  • Protective eye wear
  • Vise
  • Metal file

Before beginning to grind your bit, be sure to don safety glasses or a face shield, as well as leather gloves. These will protect you from flying particles and sparks.

Grind the Bit

Use pliers to hold the bit firmly by its base end. Turn your bench grinder on and set it at low speed.

Hold the flat, beveled end of the bit against the turning grinder wheel. Keep the bit point from touching the grinder. Grind the bit for only 2 or 3 seconds before you cool it.

Cool the Bit

Dip the bit into a container of water to cool it.


Finish sharpening by filing the bit with a metal file.