Adjustable wrenches developed according to the scientific ERGO process Special adjustable wrenches 6" and 8" with extra wide opening Standards: ISO 6787, DIN 3117, ASME B107.8M - 2003 and BS 6333 High performance alloy steel Comfortable and nonslip thermoplastic grip handle Scale in mm for pre adjusting and accurate measurement The jaw does not fall out even at maximum opening of the wrench 40% wider opening compared to a standard adjustable wrench 45% thinner jaws, compared to a standard adjustable wrench Lower weight with a convenient length of the handle Head combines slimness for accessibility with strength for performance Left going screw Black finish, precision-hardened and anti-corrosion treated