Features: 30 degree angle cut blades for professional jobs Sk2 + cr2 high grade steel for long life Popular for professional jobs 9mm bladeDescription: Sdi 1361 - 30degree angle cut snap off cutter blades 9mm, high grade material for extra sharp edge, cutter blades are a much cost effective tool with greater output compared to any other cutting tool. Each blade is produced using sdi's precise multi-step production process for amazing sharpeness and superior edge retention for longer life.