Product description
Product: Cross Impact Screwdriver Bits Set
Size:50/65/70/90/150mm(1.97/2.56/2.76/3.54/5.91in)
Package:10pcs /5pcs Batch Heads
Heat treated, durability, has high hardness, not easy to wear.
Hex Bit Set Are Made of S2 Alloy Steel, Very Well Made And Tough As Nails
Hardness can reach HRC60 degree. 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
The hex allen screwdriver set is a little bit magnetic, which helps to keep nuts and bolts stuck to them. Can improve your work efficiency. Thumbs up!