Digital Craft Combo of 2 Item with Multi-Purpose/CRV Steel Portable Impact Screwdriver Set  (Pack of 2)

Can also be used to tighten bolts. -The handle is made of cold pier and is durable. -Used mainly to loosen stubborn bolts that are rusty or cold welded. -The body is retained heat treatment, durable surface does not crack easily. -Surface is treated with double-channel knurling, plating matte, high-grade non-slip. -The batch head is made of 6150 chrome vanadium steel, which can bear large impact. -The square head joint has a 1/2 '/ 12.5mm opposite side, which can be removed and installed with the ordinary 1/2' series sleeve head for use as a socket wrench.