Most Teng Tools hand tools are forged from chrome vanadium (CrV) steel — an alloy chosen for strength and durability — with a satin finish.
Why satin instead of polished chrome?
Teng made the switch in 1991 and never went back. A satin finish resists slipping in oily hands and holds up better to daily workshop use than mirror-polished chrome — and the chrome vanadium satin finish gives long-lasting durability and resistance to corrosion.
Standards
Teng tools are designed and manufactured to meet or exceed ISO and DIN international standards — each product's spec article lists the standards that apply (for example DIN 3113A for combination wrenches, ISO 6789 for torque wrenches).
Care
Wipe tools down after use and keep them dry. Torque wrenches should be cleaned and calibrated yearly — servicing and recalibration are available on request.