When evaluating Force Tools (such as wrenches, sockets, and pliers), the primary focus should be on material composition and heat treatment. High-quality tools are typically forged from Chrome Vanadium (Cr-V) or Chrome Molybdenum (Cr-Mo) steel, which provides superior torque resistance and durability. Ensure the tools meet DIN or ANSI standards for dimensional accuracy and hardness (usually HRC 42-50 depending on the tool type). For impact tools, black phosphate finishes are preferred for corrosion resistance and safety under high-stress loads.