High torque, low cam. Especially good with torque adjustment. Perfect for your repair work. Are used to open or close the cover of your cell phone, laptop, etc. with screwdriver handle (not included). Product Name: Torx Security Screwdriver Bits Material: S2 Head Type: T20 Color: Silver Gray Drive Type: Torx Features: Magnetic Hex Shank Width: 1/4 inch Total Length: 150mm Weight: 250g Package Contents: 10pcs x Torx Security Screwdriver Bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.