IRWIN Record Arm Adjusted High Tensile Bolt Cutters have jaws that are specially heat treated for cutting very hard materials up to a hardness of Brinell 500 (Rockwell C52; 110 tons/square in).
The centre cut jaws have a short nose for trouble-free cutting of pre-stressed concrete reinforcing rods; mesh and wire; high tensile steel rods; bolts and case hardened chain; cold drawn alloy steel and tempered sprung wire.