Marking Ruler Gauge: Rockler’s innovative and helpful woodworking tools are designed to dial in the exact measurements of wood. Our 9” quick-draw motion single-handed edge measuring tool lays down a nice, bold pencil line with the spring-loaded pencil carriage. Precise Lines: The woodworking precision lines can be drawn up to 9” (23 cm) from the edge of your workplace. Our aluminum and plastic handy multipurpose marking gauge woodworking tool is perfect for a wide variety of household and workshop applications. Works also as T-Square: Not just a measure mark woodworking ruler, our quick marking tools for woodworking can also be used as a T-square, for marking lines perpendicular to the edges. The wood ruler scale indicators are adjustable for pinpoint accuracy. Spring-Loaded Mechanism: The spring-loaded mechanism presses the pencil down on this metal marking gauge tool by eliminating the need for second hand. In addition to the spring mechanism, the non-marring low friction tape on the bottom of the 23 cm multi tool ruler reduces friction and helps with easy sliding. Includes: Our Rockler marking tool gauge includes (1) 9” Rockler quick draw marking gauge, and (1) Standard HB No.2 Pencil. The pencil line is easy to see, unlike the traditional marking mortise gauge even in imperfect lighting. Rockler Woodworking Router Gauge Measurement Tool for Marking (9”): Our precision marking cutting gauge is easy to handle, that helps to improve efficiency and saves time. The quick-draw 9” wood measuring tools is a breeze to use with just one hand, swipe it along the edge and it leaves a bold pencil line exactly where it says it will, at up to 9” from the edge. --- Adjustable Ruler Tool Features: - Great for marking out mortises and grooves or laying out holes for the drawer pulls and knobs – Also works great for perpendicular lines – Included No.2 pencil which can be easily installed and removed without tools – The aluminum cut measuring tool ruler has metric graduations on one side and imperial on the other – Dovetail keyway in ruler track provides easy adjustment to hold firm locking – The hang hole is used for storage on wall or pegboard. --- Wood Rulers Specifications: The Rockler Marking gauge weighs 0.750000 – Material: Aluminum, reinforced plastic – Precision Marking Ruler Length: 9” or 23 cm. --- About Us: The history of Rockler Woodworking and Hardware goes back to 1954 when Norton Rockler started the Minnesota Woodworkers Supply Company in north Minneapolis. It was a small mail-order business with a big aspiration – to become woodworkers' go-to resource for everything they need to complete their projects.