This replacement head for Klein's 18-1/4-Inch Bolt Cutter (Cat. No. 63118) includes the blade, bolts, screws and associated parts. The forged, alloy tool steel jaws are precision ground for sure, efficient cutting and long life. All-purpose, center-cut jaws for soft, medium and hard metals. The cutting capacity for soft/medium materials is up to Brinell 300, Rockwell C31 and up to Brinell 400, Rockwell C42 for hard materials. One adjustment realigns cutting edges. NOT designed for cutting cable.