EWK 3/4" to 2-1/2" Diameter Engine Cylinder Hone Deglazer Wheel Brake Honing Tool 220 Grit TIME TO REFRESH - Removes Carbon, Rust And Heat Glaze Deposits On Cylinder Bores, Which May Cause Low Cylinder Pressure And Affect Engine Start-Up. ONLY TAKE LITTLE TIME TO HONE - With The Knurled Nut Adjusting Pressure Against The Cylinder Bores, Well-Controlled Honing Tension Creates Maximum Effectiveness. EASY TO USE - Flexible Shaft And Spring-Loaded Legs Provide Simple Operation, Can Be Used On Or Off The Car With Any Drills. COMPATIBLE WITH ANY DRILLS - The Universal Tool Can Be Used With Any Drills You Already Have. Start Your Honing Work Right Away!