The surface of each feeler gauge is coated with anti-rust oil, which is not easy to rust, and the feeler gauge spreads smoothly The overall heat treatment of the ruler body has good elasticity, wear resistance and durability, and long service life No burrs on the edge, not easy to hurt hands, safer to use The ruler can be rotated 360 degrees, flexible and easy to carry Twist the screw to adjust the tightness, and the feeler gauge can be disassembled and used as a whole, Manufacturer: ZKLGS