Descriptions:
Those U-shaped Tip Screwdriver Bits are made of S2 alloy steel which is a commonly used material with high hardness in hardware.
Magnetic bits are firmly fixed on screwdrivers.
5 sizes of U-shaped heads a set at an affordable price can meet your requirements.

Specifications:
Materials: S2 alloy steel.
Type of head: U-shaped.
Type of shank: 6.35mm / 0.25 inch hex.
Net weight: (approx.) 50g.
Dimensions:
Size: Length.(mm).
U4: 50 / 2 in.
U5: 50 / 2 in.
U6: 50 / 2 in.
U7: 50 / 2 in.
U8: 50 / 2 in.

Features:
Those bits are magnetic that can be firmly fixed on screwdrivers, fitting for electric screwdrivers, hand screwdrivers, electric drills, air drills and so forth.

Notes:
Please allow a bit manual measuring errors.

Package included:
1 x U4 U-shaped Tip Screwdriver Bit.
1 x U5 U-shaped Tip Screwdriver Bit.
1 x U6 U-shaped Tip Screwdriver Bit.
1 x U7 U-shaped Tip Screwdriver Bit.
1 x U8 U-shaped Tip Screwdriver Bit
Product Attributes:

Weight (lbs.): 0.11 lb