Description Free frozen bolts and screws by twisting the tool in the direction of the rotation and holding while striking with a hammer. Reverse action to tighten bolts. Set is standard 3/8" square drive and includes a 3/8" square drive adapter for 5/16" hex bits. Four-bit set includes a No. 2 and No. 3"Phillips and a 5"1"" and 9/3"? slotted. Set is a serviceable product and replacement bits are available individually. Replacement part: 41"402: No. 2 Phillips Replacement part: 41"403" No. 3"Phillips Replacement part: 41"41": 5"1"" Slotted Replacement part: 41"406: 9/3"? Slotted