Kastar Tools ratcheting box wrenches can get to those ”hard-to-get-at” nuts and bolts. Kastar Tools ratcheting box wrenches are well known for their long life, ease of use, quality and accuracy. Kastar Tools ratcheting box wrench handles are nickel-chrome plated for lasting quality and assurance. All Kastar 6 &amp 12 point ratcheting box wrenches utilize the ”torque grip system”. Openings are accurately broached for that perfect non-slip fit and critical parts are heat-treated to ensure safety and durability.Kastar Tools ratcheting box wrenches feature accurately broached sizes for perfect, no-slip fit. Alloy heat treated gear wheel for strength and long life. Heat treated alloy steel for added strength and durability. Nickel-chrome plated for lasting appearance. Fine blank pawls for perfect engagement with gear wheel and a head design that allows use in tight places.