3/16″ Chain Saw Sharpening Stone (2pk) 454

Precision
ground abrasive stone for quick, easy sharpening of chain saw blades.

• Ideal for sharpening chain
  saw blades, quickly and easily

User Tips

• Keep a light touch; too much
  pressure can break the grinding stone.
• For best results, insert the
  accessory bit all the way into the tool and then back it out slightly
  before tightening down. This provides plenty of shank for the collet or
  chuck to hold onto the bit.