Made of high quality aluminum alloy with high precision, high strength and high hardness. 2 kinds of proportion marked for hardwood or softwood, 1:5 slope for softwoods and 1:8 slope for hardwoods. It is marked with a precision scale to help better display size and proportion. Suitable for cork, hardwood and other woods, this dovetail marking gauge is very useful when storing. A practical and perfect tool for woodworkers or beginners, easy to mark accurately. Features : Made of high quality aluminum, durable and sturdy. It is marked with an accuracy scale to help better display size and proportions. The marker is capable of marking a 2.5cm long dovetail. Comes with 2 kinds of proportion, 1:5 ratio is usually used in soft wood and 1/8 ratio is usually used in hard wood. --Suitable for softwood, hardwood and other types of wood. A perfect tool for woodworkers or beginners. Features : Material: Aluminum Alloy. Ratio: 1/5, 1/8. Uses: woodworking mar king tools Black color. Length: 63mm. Note: 1:5 for softer wood and 1:8 for harder wood.