5/16" 1/4" Unique, patented tip slides back and forth. U.S. Patent 7,654,175 B2 Multi-Bit 32596 Twist the thumb nut to lock tip setting 1/4" 5/16" 1/4" Schrader® #2 3/8" 1/8" (3 mm) 1/4" (6 mm) Extended Reach 65129 Solid like a standard blade Cushion-Grip handle for added torque and comfort Tip-Ident for easy tool identification 1/4" 5/16" Six point hex drivers exceed ASME torque requirements Powerful magnet for maximum fastener retention Stubby 65131 1/4" 5/16" Cat. No.