STRAIGHT REGULAR CUT: The extra long straight-cut aviation snip is used to cut straight and wide curves to the left and right, and can be used in either hand. The straight blades that allow the hand to be kept safe above the cutting work below. LONGEST LASTING CUTTING EDGE: The blades are hot drop-forged of premium CRV steel and austemper heat-treated for maximum strength and durability. The aviavtion tin snips adopt vibration grinding head covering anti-rust oil, which is rustproof and more endurable. ERGONOMIC DESIGN: The ergonomic designed TPR handle with comfortable soft grip, which conforms with the motion of the user's hands and the indented ribs prevent hand and finger slippage. The tail of aviation shear is with suspension hole design, which is easy to carry and store. SAFE & HIGH EFFICIENCY: The metal safety lock is between the strong handles. It' s easy to open and close for convenient security system. High tensile strength steel will not bend from hand pressure and provides efficient conversion of hand force to cutting power. Serrated cutting edges prevent materials from slipping during use. It' s safe and easy to do metal working WIDE APPLICATION: aviation snips are ideal for use on sheet materials, beading, cans, tins and fixings, and specially designed to cut hard materials, aluminium, sheet metal, plastic plates, vinyl siding, cardboard, wire mesh, copper, leather, tiles, rubber and shingles.