Premium 135 Combo Screwdriver Set with Magnetic Bits: All bits are made of S2 stainless steel with fine workmanship and high hardness level (58-62hrc). Each type of screwdriver bit in this set is unique and not identical to others. Small Versatile Screwdriver Kit: It contains everything you need for home appliances, car repair, laptop repair, smartphone repair, watch repair and other electronic devices. The magnetic screwdriver can be used to remove screws even when the screw falls into the gap. Professional damaged stripped screw extractor set (Ex#6 - #10, Dr#6 - #10) for broken screw: Applied for all kinds of broken bits and only suitable for electric hand drills at low speed during use. Well organized according to the bit model, the accessories will remain still in the carrying toolbox. Upgraded with longer working depth, the bits can be easily aligned even when the screw position is deep and narrow. The portable screwdriver set includes 1 small screwdriver, 108 precision bits and