OCM Metric Triangular Engineer Scale Ruler (Proffessional Grade Solid Aluminum) 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler - 1:20, 1:25, 1:50 1:75, 1:100, 1:125 Description Professional's First Choice Every drawing deserves the precision and quality that the OCM 30cm Triangular Metric Engineer Scale provides. 6 Precision Metric Scales Professional quality ruler, measures 30cm in length, and features 3 concave sides with 6 different scales. 1:20 1:25 1:50 1:75 1:100 1:125 Solid Aluminum Triangular Body Constructed of Solid High-Grade Aluminum to reduce flex and warping. This allows the ruler to lay flat on the drawing surface for precise and accurate placement. The concave design feature helps reduce smearing for clean pencil lines. The Perfect Choice for Architects, Engineers, and Students Your work deserves the best in Precision and Quality. The OCM Scale is the perfect tool for any Architect, Draftsman, Engineer, or Student. Ideal for Your Next Project You expect the best from OCM and that's exactly what you'll get. Solid construction and precise performance. Let the OCM 30cm Triangular Metric Engineer Scale be your first choice for optimal accuracy on your next set of drawings. Features: SOLID ALUMINUM 30cm METRIC - Engineer, Mechanical, Architectural, Draftsman scale ruler with triangular body for safer cutting and scoring of materials.PRECISE SCALES - 1:20, 1:25, 1:50, 1:75, 1:100, 1:125. For professional applications, architecture, engineering, and technical IllustrationPRECISION MARKED METRIC GRADATIONS (NOT IMPERIAL) - Easy-to-read printed gradations.3 SIDES with 6 METRIC SCALES - Concave base reduces smearing when drawing. Product Details: Brand Name: OCM BrandItem Weight: 3.2 ouncesProduct Dimensions: 12.5 x 1 x 1 inchesItem model number: OP-33808Number of Items: 1Manufacturer Part Number: R12MShipping Weight: 3.2 ouncesDate First Available: December 4, 2016 Payment We accept Paypal payments only. Sales tax may be applied to your purchase as we possess sales tax certificates for all states we collect sales tax in. If your state is one that we charge sales tax in, you will see the sales tax charge at time of checkout before you submit payment. Delivery Expedited shipping is free. Handling time on our orders is normally between 1-2 business days. Your order should reach you within 1-3 business days. We do not ship to AK, HI, PO boxes, or APO addresses. We're not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. We don't accept requests to change shipping addresses post purchase. We do not ship to AK, HI, PO boxes, or APO addresses. We are not responsible for any incorrect or undeliverable addresses. We only ship to the confirmed Paypal address. Please note that manufactures update their packaging from time to time and that the packaging images shown in our product may vary from what you ultimately receive however be assured you are receiving the identical contents you ordered. Return Policy You may return new, unopened items within 30 days of delivery for a refund, and a restocking fee may apply. Return shipping fees are not refundable. Message us for return instructions if you have questions. Support & Feedback We take our reputation seriously, we buy and sell online, so we understand the value of trust. If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction. Contact us via eCRATER messaging and we will respond within 1 business day. Our office hours are 8AM-4PM PST Monday-Friday. We thank you for your business!