YOU ARE LOOKING AT THIS NEW GRINDING WHEEL BOROZON ,DIAMOND , NOT SURE WHAT COMPOUND ,LOOKS LIKE EXELENT STOCK REMOVAL TOOL .,.532 INCHES LONG CUTTING SURFACE.7 DEGREE TAPER. NEW APEX BRAND 1.00 DIA AT LARGE END .1/2 SHANK. CUTS ON FACE REAL EXPENSIVE TOOL . SAVE $