Jet 711157-18" Industrial Black Phosphate Adjustable Wrench – Super Heavy Duty Hand Tools The reservoir has a capacity

The reservoir has a capacity of 55 cubic in

Superior grade 6140 Chrome Vanadium steel

Super heavy duty 16 gauge steel body and lid for maximum security robotically welded seams for increased strength dual recessed lock housings prevent use of bolt cutters or blades to cut locks staked and welded piano hinge prevents hinge pin from being driven out overlapping lid prevents leaks and features full width reinforcing bolster for added strength finger groove in lid for easy opening even with gloves heavy duty lid stays

Rockwell hardness: hrc 62-64

This product manufactured in Japan

Jet 711157-18" Industrial Black Phosphate Adjustable Wrench – Super Heavy Duty Hand Tools The reservoir has a capacityChrome vanadium steel wrenches with black phosphate finish for use in applications where plated products are prohibited , No chrome plate to peel or chip , causing contamination in sensitive applications , Finish is non reflective for military applications , Black phosphate provides superior corrosion resistance versus black oxide finishes , Smaller 15 Degree jaw angle provides greater leverage than standard 22 Degree wrenches , reducing hand and arm