Copy of A&M Instruments Industrial Diamond 0.312" Mandrel - 4374-0312

These are diamond-coated burrs for cutting or grinding, available in fine and coarse grits. The fine grit is 220 and the coarse is 120. They have a 1/4 inch shank and a 0.312 inch head diameter.

• The description notes the importance of wearing eye protection and gloves when using these tools.
• The description suggests that using a lubricant or coolant can extend the life of the diamond tools.