9-in-1 Ratch-a-Nut Screwdriver, #1;#2, 1/4;5/16;7/16" Open, 1/4;3/16" Tip Width

Features: Ratcheting wire connector wrench prevents finger fatigue and gets in tight spots | Premium screwdriver ratchet mechanism can handle high torque without failure | Accepts Twist-a-Nut replacement bits