Description 15PC IMPACT TAMPER BIT SET These are impact strength 3/8″ and 1/4″ drive Torx type tamper sockets. These are made from drop forged chrome vanadium steel. They are heat-treated and have a black oxide finish for durability. Specifications: 1/4″ Drive Sd-10, 15, 20, 25, 27, 30 3/8″ Drive Sd-40, 45, 47, 50, 55, 60 Adapter: (1) 3/8″ To 1/4″ Holder: (2) Clip Rails
