Taking gunsmithing to the next level with the Wheeler 100 Piece Professional F.A.T. Wrench Screwdriver Set. The combination of Wheeler’s iconic F.A.T. Wrench with 98 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. and the 1/4″ driver handle feature a texturized rubber grip to create a comfortable and secure hold.