Features: *Made of high quality material, durable and practical to use *These drill bits are magnetic and can be fixed on a screwdriver, suitable for electric screwdrivers, manual screwdrivers, electric tools Exercises, air drills, etc. *Those Hex Head Screwdriver Bits are made of alloy steel which is a commonly used material in hardware with high hardness. *Magnetic bits are firmly fixed on screwdrivers. Specifications: *Material: alloy steel *Bit Type: Five star *Shank Type: 1/4 Hex shank *Color:Silver (As Pictures Show) *Optional models:T10/T15/T20/T25/T27/T30/T40 *Length:50mm *Quantity:1pc Package Contents: 1* Screwdriver Bit Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. We will ship it ASAP,when you place the order. If you have any questions, please feel free to contact us, we will solve it for you. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues.