PFERD Grinding stone tapered arched SP hardness M

Mounted points in hardness M are manufactured from a grain mix of tough, dark red and easy-to-break-down, white aluminium oxide in a vitrified bond.
This grain combination leads to a good balance between stock removal rate and tool life.
The hardness M is the most universally used bond for work on steel and cast steel.
- The maximum permitted rotational speed refers to the unsupported shank length of 10 mm