The Carbyne Tools 8-pc Tap Socket Set, No. 3101593, allows technicians to drive taps in confined spaces where traditional tap handles will not fit. The set connects to standard 1/4" and 3/8" square drive tools and fits all number and fractional M.C.T.I. standard taps through 1/2", metric taps through M12/M12.5, and 1/8" NPT taps. Each socket features a cam + O-ring mechanical retention system that securely grips the tap square for improved torque transfer and reduced slip compared to magnetic designs, according to the company. The sockets are precision-machined from chrome vanadium steel with a manganese phosphate finish and are supplied on a reusable aluminum socket rail. The set is backed by Carbyne's lifetime warranty.