Features: Brand new and high quality 3.52 inch T7, T8,T9, T10, T15, T20, T25, T27, T30, T40 10 in 1 professional size security torx bit set.They feature a standard 1/4" Hexagon bit drive size which convenient for daily use.Fit all commercially available quick-change chucks and hexagonal tools for screwdrivers and drills.It's better to prepare in advance. Magnetizable security torx screwdriver bit set compare with others impact driver bit set are more magnetic to pick up and hold screws easily with no sliipping or stripping. Torx screwdriver set made from high quality shock-resisting tool steel which is a hard and abrasion-resistant alloy metal.Can withstand repeated use The 1/4" Hexagon shank drill screw bit set is not only work with impact driver, but also magnetic screwdriver bit set perfect for any regular drill, electric and hand screwdrivers, power drills,corded drills and more,the magnetic impact bit set are widely used in electronics repairs, framing installation and so on. This drill bit set can be fun and practical gift for your loved ones. It is a unique and exquisite gift for him on various occasions such as Fathers Day,Christmas , birthdays or anniversaries. Help him get the job done easier and faster. Specifications: Material:S2 Steel Length:Approx.7.5cm/2.95inch Package Includes: 11x Screwdriver Bit note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.