[Use]
For architecture, electrical, mechanical assembly and maintenance, precision assembly, DIY projects.

Features:
A bit for square screws commonly used for sashes and earthquake resistant metals.
The 10 colors are color-coded and the bits are easy to select.
Precision blade tip processing achieves a high fit.
● The edge of the blade is not plated or painted, so it can stick well with screws and fits a variety of screws.
● All hexagonal surfaces are printed with a sharp edge that does not bleed like painted products. (Total length excluding 7.9/11.8 inches (200/300 mm)