Type 1 cut-off bonded abrasive wheels are extremely efficient at cutting steel bar, tubing, angle iron, and stainless steel. MIBRO cut-off wheels are made with premium grade aluminum oxide grains. These efficient, economical metal cutting abrasive wheels are fast cutting and will increase the productivity of any metalworker, welder, or machine shop. WARNING: Improper use may cause wheel breakage and serious injury. Never use wheel on drills or pistol gripped air/electric sanders or tools not specifically designed for Type 1 wheels. Always use machine guard. Inspect wheel before use and discard if dropped or damaged. Never exceed maximum rpm. Never apply excessive force. Never use for side grinding. Comply with ANSI B7.1/OSHA/CSA regulations.