Precision cutters feature a matched screw/lap joint for superior blade alignment. Tough, resistant cutting edges are hardened and tempered to 63-65 HRC. Three types of cut to choose from: "Semi-Flush" leaves a noticeable "pinch" but offers the longest tool life. "Maximum Full Flush" leaves slightly more "pinch" and offers longer tool life. "Optimum Full Flush" leaves a hardly-noticeable "pinch" on the cut ends to meet military and medical needs but offers a shorter tool life. Ergonomically designed, soft-cushion static safe grips help lessen fatigue and increase productivity. Wire gauge capacity shown is for soft copper wire only.