5 Pcs Screwdriver Bit High Hardness 25/50/65/70/90mm Proof PH2 Screwdriver Set

Features: *Heat treated durability has high hardness not easy to wear. *Very Well Made And Tough As Nails. Hex key set fit for electric drills with speed regulating device electric screwdrivers hand screwdrivers. Please do not use drill bits on pneumatic tools air dills and the electric drill without speed regulation. *A long lifetime of the drill bit is reached due to its durable construction and superior technology. *High quality long lasting and durable. The Hex drill bit set is clearly marked that you can find what size you need quickly. *Easy to take and use. *which helps to keep nuts and bolts stuck to them. Can improve your work efficiency. Specifications: Product Name: Screwdriver Bits Set Material: Alloy Steel Color: Black Size: 25 50 65 70 90mm Quantity: 5pcs Package Included: 5*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.