⁺Tungsten Steel/Ruby Head Dovetail Rails Dial Gauge Needle 1.6mm Indicator
The whole body of product is made of tungsten steel, high hardness, long service life. Main material: Tungsten steel Type:(Optional). #2, M1.6 L20.9 D2.0 tungsten steel head. #5, M1.6 L36.8 D2.0 tungsten steel head.