3/8" x 8" Slotted Screwdriver - Harbor Freight Tools. General Purpose Slotted Screwdriver: 3/8 in Tip Size, 13 1/4 in Overall. Slotted Screwdrivers - Global Industrial. 2 Snap-On Screwdrives 3/8" Tip Slotted Screwdriver SGD8B, Phillips No.4. WESTWARD General Purpose Slotted Screwdriver: 3/8 in Tip Size, 12 1/2. TEKTON 3/8 in. Drive Impact Screwdriver Set (7-Piece) 2905. Insulated Slotted Screwdr..