28Pcs stainless steel screwdriver bit, continuous heat Auxiliary control integrated molding, carbonization heat refining, hard but not break, full of toughness Multiple bit screwdriver set locking structure of arm is extremely stable, providing excellent and long service life Multifunctional Ratcheting wrench and screwdriver set with ergonomic handle provide comfort and secure grip Screwdriver set with handle powerful feature adheres small screws to the tool head, suitable for delicate electronics disassembly Includes different kind of screwdriver bit to meet the needs of professional use, home life, work, maintenance, Manufacturer: Oxxggkao