Outfit your cylindrical or surface grinder with this 25A AO Type 05 toolroom wheel for longer wheel life and consistent grinding action at high metal removal rates. The wheel is recessed on one side and features a friable aluminum oxide abrasive that provides a maximum depth of cut for increased efficiency. A controlled porosity bond ensures lasting use in wet or dry applications, thanks to increased chip clearance and maximum coolant flow for cool cutting. The sturdy bond post ensures maximum form holding and grain retention and the wheel works well with tool steels and cast iron.