--- product_id: 82460750 title: "Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch" brand: "boomgood" price: "£11.05" currency: GBP in_stock: true reviews_count: 8 category: "Boomgood" url: https://www.desertcart.co.uk/products/82460750-machinist-square-precision-engineer-wide-seat-square-90-right-angle store_origin: GB region: United Kingdom --- # DIN 875 Grade 1 precision Hardened, tempered & polished steel 4 x 2.5 inch wide seat design Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch **Brand:** boomgood **Price:** £11.05 **Availability:** ✅ In Stock ## Summary > 📐 Elevate your craft with the square that sets the standard. ## Quick Answers - **What is this?** Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch by boomgood - **How much does it cost?** £11.05 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/82460750-machinist-square-precision-engineer-wide-seat-square-90-right-angle) ## Best For - boomgood enthusiasts ## Why This Product - Trusted boomgood brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Protect & Preserve:** Comes with a sleek plastic case to keep your precision tool pristine and ready for action. - • **Rock-Solid Durability:** Crafted from hardened, tempered steel with polished beams and blades for lasting rigidity. - • **Built to Last & Perform:** Tapered self-locking rivets permanently fix blade to beam, ensuring zero flex or play. - • **Ergonomic Wide Seat Design:** 4-inch blade and 2.5-inch beam provide superior stability and balance during use. - • **Unmatched Precision Engineering:** Certified DIN 875 Grade 1 accuracy for flawless right angles every time. ## Overview This Machinist Square is a precision-engineered measuring tool made from hardened, tempered, and polished steel, certified to DIN 875 Grade 1 standards. Featuring a 4 x 2.5 inch wide seat design and permanently fixed blade with tapered self-locking rivets, it guarantees true 90° angles inside and out. Ideal for machine setup, woodworking, and laboratory use, it comes with a protective plastic case to maintain its accuracy and durability over time. ## Description The heavy square base ensures stability and precision, you will love the weight, balance and design of this engineer square. The blade is permanently fixed to the beam by means of tapered self locking rivets which ensure complete rigidity. Blade edges and beam faces are precisely ground and polished for straight and smooth, have an inside notch for accuracy. This machinist square accuracy reaches DIN 875 Grade 1, it is THE square that you proof everything else to. Specification: Material: Hardened Steel(45 Steel) Precision: DIN 875 Grade 1 Size:100x63mm(4x2.5 inch) Use For: Suitable for use in laboratory;woodworking, precision layout work and machine set-up Package Included: 1 x Wide Seat Square NOTE: 1. The square comes in a plastic case and wrapped in clear plastic with oil on it for protection, it's very easy to wipe off with a towel before use. 2. We recommend storing it back in it's case after use it, so that makes sure it will always remain THE standard of square for you. Review: High Quality, especially for the price - Very nice! Sturdy and well made! Review: A good tool for the money - Great on point . Had to make square stock for some high end stair threads and this tool showed exactly what I was teaching. ## Features - Precision: DIN 875 Grade 1,designed for precision layout, machine set-up and laboratory use - Squares are true right angles both inside and outside - These squares are made of hardened, tempered and polished steel, beams and blades are ground and polished for parallelism; The blade is permanently fixed to the beam by means of tapered self locking rivets which ensure complete rigidity - 4 inch blade and 2.5 inch beam, length of blade is measured from corner edge of beam to end of blade - The small plastic case it comes with makes sure that it will always remain THE standard of square for you from now on ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07H7GLWZ7 | | Best Sellers Rank | #48,015 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #52 in Carpentry Squares | | Brand | Boomgood | | Brand Name | Boomgood | | Color | Silver | | Customer Reviews | 4.3 out of 5 stars 965 Reviews | | Graduation Range | 2.5 Inches | | Item Dimensions L x W | 4"L x 2.5"W | | Manufacturer | Boomgood | | Material | Hardened Steel | | Material Type | Hardened Steel | | Part Number | BM0907 | | Product Dimensions | 4"L x 2.5"W | | Style | Square | | Style Name | Square | | UPC | 713012556075 | ## Product Details - **Brand:** Boomgood - **Color:** Silver - **Graduation Range:** 2.5 Inches - **Material:** Hardened Steel - **Style:** Square ## Images ![Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch - Image 1](https://m.media-amazon.com/images/I/716bzOUgdvL.jpg) ![Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch - Image 2](https://m.media-amazon.com/images/I/61SjfjRxgVL.jpg) ![Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch - Image 3](https://m.media-amazon.com/images/I/61gd2HhsFSL.jpg) ![Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch - Image 4](https://m.media-amazon.com/images/I/61CjCBAzq-L.jpg) ![Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch - Image 5](https://m.media-amazon.com/images/I/71RHuToHI-L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ High Quality, especially for the price *by R***Y on April 22, 2026* Very nice! Sturdy and well made! ### ⭐⭐⭐⭐⭐ A good tool for the money *by L***. on March 28, 2026* Great on point . Had to make square stock for some high end stair threads and this tool showed exactly what I was teaching. ### ⭐⭐⭐⭐⭐ Accuracy *by J***N on May 6, 2026* Small and very accurate. I have already used it many times. I would recommend it highly. ## Frequently Bought Together - Machinist Square Precision Engineer Wide Seat Square 90 Right Angle Ground Hardened Steel Angle Ruler 4 x 2.5 Inch - GOINGMAKE Thin Rip Jig Table Saw Jig Guide for Making Repetitive Narrow Thin Strip Cuts Woodworking Tools Fast Thin Ripping Guide for Table Saw Band Saw Router Table Fits for 3/8" x 3/4" T Slot - MITREAPEL Ca Glue with Activator (2 x 1.7 oz - 2 x 6.7 fl oz), Ca Glue for Woodworking, Cyanoacrylate Glue and Activator for Wood, Plastic, Metal, Leather, Ceramic and Craft - Instant Bond - 2 Pack --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/82460750-machinist-square-precision-engineer-wide-seat-square-90-right-angle](https://www.desertcart.co.uk/products/82460750-machinist-square-precision-engineer-wide-seat-square-90-right-angle) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*