Stainless Steel Ruler Body] Made of stainless steel, the scale is clear and accurate, CNC machining, comfortable texture, makes marking much less time and much more accurate. < li>Precise operation] 1mm, 0.5mm, 0.25mm, each scale position has finely marked holes and grooves, which makes the operation more precise. Easy to Use]Flexible and easy to use.Let the scribe do what you want,satisfy all carpenter square wood scribe needs.Specially designed for woodworking mortise positioning and marking,convenient and precision. Multiple Functions] Achieve multiple functions, including horizontal line, vertical line, long line, short line, parallel line and right angle line, meeting your various marking needs. Packing list] Comes with the mechanical pencil and a box of high hardness pencil lead 0.5mm, it will not be easy to break and work for a long time. Specification: Item Type: Tracing Ruler Material: stainless steel Color: Silver Pencil diameter: 0.5 mm Measuring range: 0-300mm, The package contains: Packing list 1 x tracing ruler 1 x pencil 1 box of pencil lead Feature: 1. There are micro-fine marking holes and slots. 2. Accurate, versatile and easy to use T-type ruler. 3. Locate your sharp pencil or scribe with absolute precision. 4. Instantly mark your position with zero uncertainty, zero parallax and zero eye strain. 5. Specially designed for wood mortise positioning and marking, convenient and precision.