Features: 24Pcs/36Pcs industrial steel screwdriver bit, continuous heat treatments. Auxiliary high-precise control integrated molding, carbonization heat refining, industrial-grade service life, full of toughness. Includes different kind of screwdriver bit to meet the needs of professional use, home life, work, maintenance. Multi bit magnetic screwdriver set locking structure of arm is extremely stable, providing excellent performances and long service life. Screwdriver set with handle powerful magnetic feature adheres small screws to the tool head, suitable for delicate electronics disassembly. Multifunctional magnetic ratcheting wrench and screwdriver set with ergonomic handle provide comfortable grip Specifications: Component:Steel Type:24 in 1/33 in 1 Size:Approx.15.5x9x3.5cm/6.1x3.54x1.37inch Package Includes: 1 Set Magnetic Screwdriver note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.