Design: Tetrabor® honer made from pure, sintered boron carbide. Only the extreme hardness (approx. 35000 N/mm²) and resistance of boron carbide gives an efficient edge to grinding wheels. The grain does not slip on bonding, rather cuts it smoothly. For grinding wheel honers up to 300 mm Ø.
Note: Only use the edge to hone, not the flat surface.