Bosch 27237 1/4-Inch by 1-5/8-Inch Magnetic Nut Setter Impact Bosch has engineered a line of screw driving bits, nut setters and sockets that can handle the torque in the increasing applications where impact drivers are used Forged tip - reduces breakage Torsion Zone - Absorbs torque peaks reducing stress at the tip Hardened Core - Increases bit strength, reduces fracture