Weight: 126g , Product Name : Torx Security Screwdriver Bits Package Content 10pcs x Torx Security Screwdriver Bits Main Material: Metal , Head Type: .TT10,TT15,TT20,TT25,TT30.. Main Color Silver Tone Drive Type Torx Features Magnetic Battery Included No Total Length 75mm/3" Hex Shank Width 1/4" High torque, low cam-out. Especially good with torque-setting tools. Great for your repair works. They are used to open or close the cover of your cell phone, laptops an so on together with the screwdriver grip( not included).Main Material: Metal , Head TT10,TT15,TT20,T25,TT30.. Main Color Silver Tone Drive Type Torx