3M 1-1/2 Inch x 3/4 Inch 400 Grit Diamond Flat File

3M's plastic diamond file is an excellent way to get into hard to reach areas or give a controlled grind to the surface or edges of your ceramic project. The 1.5" x .75" Diamond surface allow for grinding in various locations with ease and the long plastic handles make grinding control easy.  

Works great to sharpen dull trimming tools. Like the Hsin Tools, Groovy or Dolan.

Help smooth glaze drips and sharp edges.