This Adjustable Miners Wrench for mining and construction. The hammer head is heat treated separately to RC 50-60 for extra safety, and additional material is added to major body stress points. To prevent the jaw from skipping over the knurl when pressure is applied, very tight tolerances are used between the knurl and traveling jaw.

•  High-Grade Alloy Steel
• Drop-Forged Construction
• Special Wide Opening (1-3/4")
• Precision Machined
• 7/8" Hex End