Type 12V9 Grinding Wheel 3" x 1/4" 180 Grit Dropship and is 400 Grit (30

and is 400 Grit (30 micron)

Replacement Ergonomic Knob for any of the Twice As Sharp shear clamps

This steel disc is much harder than cast iron discs to offer you a longer usable life

More dull knives may require more steeling

The diamond coated rods are adjustable to sharpen at angles from 10 to 20 degrees

Type 12V9 Grinding Wheel 3" x 1/4" 180 Grit Dropship and is 400 Grit (30#3570193 is a 3" Type 12V9 Grinding Wheel used for sharpening router bits and shaper cutters on Foley Belsaw Model 473 380 Sharpeners and Router Attachments. It features diamond Abrasive for carbide grinding. It has a grit concentrate of 100 and is typically used with coolant.