Stainless steel micro serrated blades prevent material slipping during cutting. Blades are made of highly corrosion resistant stainless steel alloy and thoroughly hardened. Precision ground and honed to an ultra-sharp edge. Optimised geometry to cut paper and card, Kevlar, carbon and glass cloth, fabric, leather and tough materials - from pivot to tip. Large, durable ergonomic handles for control and comfort. Ambidextrous - use with either right or left hand. Adjustable tension pivot screw.