This is a dovetail marking gauge to help woodworkers mark wood joints. [1:5 and 1:8]: This dovetail marker clip has 2 aspect ratios; 1:5 and 1:8 [High Accuracy]: This wood measuring tool has an accurate scale, which helps to improve work efficiency.< /p> 【Premium Material】: The dovetail guide is made of high quality aluminum alloy; durable and long-lasting. 【Wide applications】: This product is widely used for wood such as softwood, hardwood, etc. ; a handy tool for carpenters and DIY enthusiasts.