Brownells 240-Piece Torx Head Scope Ring Base Screw Kit

240-piece Torx head scope ring base screw kit. A Torx head enables secure fastening of screws without the risk of the bit slipping and damaging the screw slot. The kit includes T-10 and T-15 Torx sizes to accommodate various applications. The T-10 size offers increased wall thickness at the junction of the head and shank, while the T-15 size features a large socket compatible with drivers commonly supplied with many popular brands of rings and bases.