4" Diamond Sharpening Wheel 400 Grit 1/2" wide

4" Diamond Sharpening Wheel 400 Grit 1/2" wide

400 grit 4" diamond sharpening wheel 1/2" wide

Perfectly fits serrated shearing knives and works great for sharpening straight edge shearing knives as well. You can easily sharpen your knife in under 5 minutes. This works on any 3/8" or 1/2" electric or battery drill. Max RPM is 2,800, but speeds of 600-1,000 RPM are optimal.