Stainless Steel Ruler Body- The Ruler Is Made Of Stainless Steel With Precision Workmanship, Clear Scale, Cnc Machining And Comfortable Texture. The Vertical Adjustment Knob Uses Pure Copper Knurled Nuts For Easy Operation . There Are 200 or 300 or 400Mm Sizes For Customers To Choose From.There Are Even Two End Vertical Scales To Draw Precision Parallel Lines To The Edge Of Your Work. Minimum Accuracy Of 0, 25Mm- 0.25Mm Minimum Precision Makes The Operation More Accurate And Reduces The Error. The Ultra-Precise Marking Ruler Has Tiny Holes And Slots At Each Graduation, Allowing You To Make A Dot With A Pencil Or To Mark A Line Accurately Within The Width Of A Hair The Scale, Being Recessed And Etched In Black, Is Easy To Read. Clear Engraving- Clear And Precise Laser Engraving Scales. The Imported 0.5Mm Pencil Makes The Line Smoother, The Surface Is Non-Reflective And Allows Even Tired Eyes In Weak Light To Mark The Exact Start. Select The Appropriate Slot Or Hole, Insert A 0.5Mm Mechanical Pencil And Mark The Measurement With Absolute Precision. Multiple Functions- Achieve Multiple Functions Including Horizontal Line, Vertical Line, A Long Line, A Short Line, A Parallel Line And A Right Angle Line, Meeting Your Various Marking Needs. And Measure Top, Edge And Corners Simultaneously Suitable For- Suitable For Positioning And Marking Woodworking Mortise And Tenon Work. The Right Angle Ruler Is Exactly What You Need For Layout And Measuring Along The Edge Of A Board Or Other Piece. Micro-Fine Marking Holes At Each Scale Line Allow You To Instantly Locate Your Sharp Pencil Tip Or Trace Exactly On Target Without Any Guesswork Or Eye Strain Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store