The cutter adjustment is by eccentric ( a cammed bolt which adjusts the cutter head when turned) to compensate for blade wear.
The cutting blades are entirely forged from heavily alloyed steel which produces a thoroughly hardened blade with a sound structure. The ground edges of the cutting blades are subjected to a second hardening process which ensures maximum hardness of the cutting surface.

Type. High Tensile Centre Cut Bolt Cutter<
Size.30in.
Cutting Capacity. Mild Steel 12mm.
High Tensile 10mm.