1.Multicoated optics guarantee superior light transmission and brightness.2. Prefect for auto repair and machinery where metric threads are specified.3.Easily switched from left to right handed operation, or locked for non-ratcheting use.4.suitable for soft metal, such as aluminum plate, iron plate. high speed steel 6542, suitable for ordinary stainless steel and other hard materialsProduct DescriptionColor: SilverMaterial: Alloy steelSize: 12CMTap size: M3*0.5CM, *0.7CM, M5*0.8CM, M6*1.0CM, M7*1.0CM, M8*1.25CM, M10*1.5CM, M12*1.75Package Contents:7pc x Tap1 x WrenchOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.