Chrome molybdenum jaws with ductile iron handles. US Federal Standards GGG-W-651E Teeth Hardness(A): HRC 55-60 Jaw Threading Hardness(B): HRC 40-49 Knurl Hardness(C): HRC 32-48
Chrome molybdenum jaws with ductile iron handles.
US Federal Standards GGG-W-651E
Teeth Hardness(A): HRC 55-60
Jaw Threading Hardness(B): HRC 40-49
Knurl Hardness(C): HRC 32-48