Precise Measurements: The pocket ruler is wide, the sliding ruler is square enough to take accurate measurements on any drawing, the carpenter's ruler is very handy for accurate placement of cuts, the adjustable sliding mechanism locks nicely, allowing you to take simple measurements on surfaces, Two thumbscrews secure the slider so it 't loosen during use THICK & DURABLE: Straight edge metal sprocket ruler is made of top grade aluminum alloy, the measuring ruler is not only flexible but also has a beautiful black finish, machined, lettering and finishing is very good, suitable for marking, marking Clear Graduation: The woodworking ruler is easy to read and works very smoothly, pocket size, imperial and metric, etched, permanent grooves that will never fade Vertical Scale and : You can use the 1/4-3/4 inch end vertical scale to measure the height of your bench router bit or your table saw blade, there is a small at for a pencil to keep it in place Drop into place when dragging rules to make snaplines and fit markers Woodworking Tools: The T-shaped pocket ruler is a good size and easy to carry, the precision ruler can be used as a good measuring tool for engineers, architects, and can be used in workshops, , toolboxes, cabinets Colour:red Material:aluminum alloy Size:34 x 7 x 3cm Package Contents: 1 x 12 inch multi-function marking ruler 1 x 8 inch multi-function marking ruler 1 x 6 inch multi-function marking ruler Only the above package content, other products are not included. Note: Light reflection 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.