STAINLESS STEEL RULER BODYThe ruler is made of stainless steel with precision manufacturing, clear scale, CNC machining and comfortable texture. The vertical adjustment knob uses pure copper knurled nuts for easy operation. MINIMUM ACCURACY OF 0.25MMThe minimum accuracy of 0.25mm makes the operation more precise and reduces the error. The ultra-precise marking ruler has tiny holes and slots at each graduation, allowing you to make a point with a pencil or mark a line accurately within a hair's breadth! The scale, being recessed and engraved in black, is easy to read. CLEAR ENGRAVINGClear and precise laser engraving scales. The imported 0.5mm pencil makes the line smoother, The surface is non-reflective and allows even tired eyes under dim light to mark the exact beginning. Select the appropriate slot or hole, insert a 0.5mm mechanical pencil, and mark the measurement with absolute precision. MULTIPLE FUNCTIONSAchieves multiple functions, including horizontal line, vertical line, long line, short line, parallel line, and right-angle line, meeting your various marking needs. The 90 shape keeps it perfectly in place while the dual scale surfaces allow you to mark and measure on the top, edge, and corners simultaneously! SUITABLE FORSuitable for positioning and marking mortise and tenon work for woodworking. The right angle ruler is precisely what you need for layout and measurement along the edge of a board or other workpiece. Micro-fine marking holes at each scale line allow you to instantly locate your sharp pencil tip or scribe exactly on target without any uncertainty and eye strain! Delivery Quantity: One Piece