Features: Anti Skid Handle: Anti skid pattern handle, not loose. The handle has a non slip granular design. Self Locking Marble: Our screwdriver handle has a self-locking marble that can jam the screwdriver bit. Solid Steel Handle: Our handle is made of one-piece solid steel material, with impact resistance and longer service life. Sleeve Interface: This sleeve interface is a dual-purpose design, and the sleeve disassembly supports 4-turn 6-type lengthened conversion sleeves. Rust Proof Set: This screwdriver set adopts high quality material which will avoid rust well. Specifications: Material: Steel Function: Screwdriver Usage Methods: 1. Press the screwdriver bit down firmly. 2. Rotate left or right to change the forward and reverse directions. 3. Release the handle to complete the forward and reverse adjustment, and align the screwdriver head with the screw. 4. Repeatedly strike the tail of the impact screwdriver head with a hammer, and the head will automatically rotate and then be taken out. includes: 1 *7pcs Impact Screwdriver Bit Set