The Slim Line 9247SL optimum flush new and improved Lazer Line® medium SLIM LINE tapered/relieved head cutters feature BLACK OXIDE FINISH and a smaller frame with new molded grip. They are made of AISI 52/100 carbon tool steel with induction hard cutting blades to RHC 63-65. The CNC machining allows the joint surfaces to be perfect to allow for long life. The dual leaf springs provide a smooth action. It features molded ergonomic antimicrobial Anti-Static grips (10¹⁰ohms/sq surface resistivity).