The very best possible tools for removing most styles of buttstock bolts and action spring tube nuts. The thin-walled sockets are correct to prevent slipping and burring. The drag-link bit is round at the drive end, which automatically centers the blade in the stock bolt hole and makes fitting it into the slot about 1,000 times easier!! Plus, they work for other shop jobs, too. Mfg: Brownells SPECS: Set – Includes T-handle, 10" (25.4cm) drive extension, (5) 3/8" (9.5mm) drive sockets, and drag link bit. Sockets & Drag Link – Includes all (5) drive sockets and drag link bit.