High Quality Dovetail Tool- The dovetail gauge is made of aluminum alloy, which is strong, light, wear-resistant and corrosion-resistant. The surface of the ruler body is specially treated, and the thickened ruler body has higher compressive strength. The dovetail is durable, not easy to break, and can be used for a long time.2 Different Ratios- There are scales on both sides of the dovetail mark, the scales are clear and accurate, there are two different scales, 1:5 scale is suitable for softwood, 1:8 scale is suitable for hardwood, it is just right for your different needs. Dovetail gauges are easy to use and can improve your work efficiency.Smooth Edges- The dovetail rails are carefully ground and polished. The edge thickness is 0.3mm. The corners are smooth and not sharp, giving you more security. The dovetail marker gauge has 4 sharp corners. Please place them correctly so as not to drop and injure them.Easy to Use- The dovetail gauge has a handle that attaches to the edge of the board for easy sliding. The handle can be firmly attached to the board, so you don't have to worry about errors caused by moving the dovetail ruler. Dovetail gauges are small and lightweight so you can easily carry them with you.Practical Woodworking Marking Tools- The dovetail jig makes marking quick and easy. Precise dovetail slope for sheet metal splicing, repairing cracks and right angle joints. A high-quality dovetail measurement with accurate proportions and good quality can help you with your work.