Constructed with a lightweight aluminum sleeve for fast turning. A locking end holds sockets securely in place. The pivoting end is great to reach odd angles and offers greater versatility. A 3/8" drive end allows the speed T-handle to be used with a ratchet like an extension. The speed T-handle set includes 1/4" and 3/8" speed T-handles and a posi-lock adapter that allows the use of any 1/4" hex bit. Set is packaged in a blow-molded case.