Take gunsmithing to the next level with the Wheeler 100 Piece Professional F.A.T. Wrench Screwdriver Set. The combination of our iconic F.A.T. Wrench with 98 screwdriver bits and adapters make this set a gunsmith's dream. With a torque range of 10-65 in-lbs, the F.A.T. Wrench is ideal for a variety of fastening jobs. Both the F.A.T. Wrench and the A 1/4" driver handle feature a texturized rubber grip to create a comfortable and secure hold. Features: Included F.A.T. wrench achieves perfect torque without causing damage to the fastener Molded case organizes bits and drivers Bits are coated in black phosphate to prevent rust Hollow-ground flat bits create precise fit to prevent damage to screws and firearms