--- product_id: 5146435 title: "Steel Combination Square with Square Head, 12\" Blade Length" brand: "starrett" price: "$276.76" currency: USD in_stock: true reviews_count: 13 category: "Starrett" url: https://www.desertcart.us/products/5146435-steel-combination-square-with-square-head-12-blade-length store_origin: US region: United States of America --- # 12-inch hardened steel blade for precision 4R graduations down to 1/64 inch for ultra-fine measurements Durable cast iron square head built to last a lifetime Steel Combination Square with Square Head, 12" Blade Length **Brand:** starrett **Price:** $276.76 **Availability:** βœ… In Stock ## Summary > πŸ“ Elevate your craft with precision that lasts a lifetime! ## Quick Answers - **What is this?** Steel Combination Square with Square Head, 12" Blade Length by starrett - **How much does it cost?** $276.76 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/5146435-steel-combination-square-with-square-head-12-blade-length) ## Best For - starrett enthusiasts ## Why This Product - Trusted starrett brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built Like a Tank:** Cast iron head and hardened steel blade withstand harsh job site conditions without losing integrity. - β€’ **Multi-Tool Mastery:** From scribing right angles to depth gauging, this combo square adapts to every pro’s layout needs. - β€’ **Effortless Readability:** Satin finish blade reduces glare, making fine measurements easier on your eyes during long projects. - β€’ **Trusted Legacy, Made in USA:** Join the ranks of craftsmen who demand precision and durability from a brand with a century of excellence. - β€’ **Pinpoint Accuracy Every Time:** Graduations down to 1/64 inch ensure your measurements are razor-sharp and reliable. ## Overview The Starrett Steel Combination Square features a 12-inch hardened steel blade with 4R graduations down to 1/64 inch, paired with a robust cast iron square head. Designed for professionals and serious DIYers, it offers unmatched accuracy, durability, and versatility for measuring, squaring, and layout tasks. Made in the USA and built to endure, this tool is a must-have for anyone committed to flawless craftsmanship. ## Description Starrett Steel Combination Square with Square Head, 12" Blade Length | Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type, 11H-12-4R: Carpentry Squares: desertcart.com: Tools & Home Improvement Review: Incredibly accurate and sturdy - I was using an empire combination square that just would not stay square (about 1/16" off at 12"). I finally bit the bullet and spent the money on the Starrett after seeing nothing but positive raves about their quality and accuracy. I am not disappointed! This square is perfectly square out of the box and feels very sturdy in my hands. The marks go all the way down to 64ths, but my old eyes are having a hard time seeing that small so I stick with 32nds. Great product. If you are on the fence about it, do it, it's worth the expense if you need accuracy. Review: Quality, accurate, beautiful - If you all you work with is 2x material and plywood, then pick up a speed square at your local hardware store...if you want to build quality furniture or heirloom pieces, then this is what you want. If all you have ever held were the combination squares that you can find on the rack at your local hardware store, then you are in for a treat if you are able to wrap your fingers around a Starrett. First thing you will notice is the weight, not only is the cast Iron head heftier than the cheap aluminum or zinc in the typical 10 dollar square, the blade is heftier as well. The fit and finish are top notch, from the hardened awl to the etching on the blade. The most important thing however is that you know that this will be 100% accurate and square to 90`. (you can easily google how to check your square for square, i.e. 2 parallel line test) and it will stay that way. Also, made in the USA. My only wish was that I got the hardened steel head instead of the cast iron (I have a 6 inch square with the steel head) as it has better rust resistance. Also, make sure you get the satin blade, not the polished, much easier to read...this one has the satin blade. ## Features - Designed for Precision - The ruler has a 4R graduation type with 8ths, 16ths, quick reading 32nds, and 64ths that greatly increase the accuracy of your measurements. - Built to Last - Able to withstand even the harshest environments as our combination squares are designed to last a lifetime. They are very reliable and perfect for any project you take on. - Variety of Uses - The square head can be used for a variety of purposes such as scribing right angles and parallel lines, measuring, tri-squaring, mitering, depth gauging, height gauging, and levelling. - Quality Made - The blade is made of hardened steel, offering exceptional durability and resistance to wear, rough usage, high-impact pressure, and shock. - Versatile Layout Tool - Starrett squares are offered in a practical variety of styles to suit the needs of the individual, whether it be a toolmaker, mechanic, carpenter, or a "do-it-yourself" homeowner. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002CSBNO | | Best Sellers Rank | #50,838 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Carpentry Squares | | Brand | Starrett | | Brand Name | Starrett | | Color | Multicolor | | Customer Reviews | 4.8 out of 5 stars 457 Reviews | | Global Trade Identification Number | 00049659500554, 00094705119709 | | Graduation Range | 1/64 inches | | Item Dimensions L x W | 12"L x 1"W | | Item Weight | 1.2 pounds | | Manufacturer | Starrett | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model | 11H-12-4R | | Number of Items | 1 | | Part Number | 11H-12-4R | | Product Dimensions | 12"L x 1"W | | Style | 4R Graduation Type | | Style Name | 4R Graduation Type | | UPC | 094705119709 049659500554 | | Unit Count | 1 Count | | Warranty Description | One Year on defects in material and workmanship | ## Product Details - **Brand:** Starrett - **Color:** Multicolor - **Graduation Range:** 1/64 Inches - **Material:** Alloy Steel - **Style:** 4R Graduation Type ## Images ![Steel Combination Square with Square Head, 12" Blade Length - Image 1](https://m.media-amazon.com/images/I/61tHgdkq+PL.jpg) ## Available Options This product comes in different **Model** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Incredibly accurate and sturdy *by M***R on February 12, 2023* I was using an empire combination square that just would not stay square (about 1/16" off at 12"). I finally bit the bullet and spent the money on the Starrett after seeing nothing but positive raves about their quality and accuracy. I am not disappointed! This square is perfectly square out of the box and feels very sturdy in my hands. The marks go all the way down to 64ths, but my old eyes are having a hard time seeing that small so I stick with 32nds. Great product. If you are on the fence about it, do it, it's worth the expense if you need accuracy. ### ⭐⭐⭐⭐⭐ Quality, accurate, beautiful *by C***T on December 24, 2013* If you all you work with is 2x material and plywood, then pick up a speed square at your local hardware store...if you want to build quality furniture or heirloom pieces, then this is what you want. If all you have ever held were the combination squares that you can find on the rack at your local hardware store, then you are in for a treat if you are able to wrap your fingers around a Starrett. First thing you will notice is the weight, not only is the cast Iron head heftier than the cheap aluminum or zinc in the typical 10 dollar square, the blade is heftier as well. The fit and finish are top notch, from the hardened awl to the etching on the blade. The most important thing however is that you know that this will be 100% accurate and square to 90`. (you can easily google how to check your square for square, i.e. 2 parallel line test) and it will stay that way. Also, made in the USA. My only wish was that I got the hardened steel head instead of the cast iron (I have a 6 inch square with the steel head) as it has better rust resistance. Also, make sure you get the satin blade, not the polished, much easier to read...this one has the satin blade. ### ⭐⭐⭐⭐⭐ Best of the best! *by D***W on July 9, 2013* It's a Starrett... when it comes to precision marking and measuring tools NO ONE does it better. My 6 inch combination square is from another manufacturer. I bought it at a big box home center. It is accurate and it works OK but it doesn't compare to this 12 inch Starrett. The Starrett is heavier which gives it a great feel when you are working with it. The Starrett has great adjusting components too. A slight twist of the knob with my thumb and the rule is locked in place. No wiggles. No wobbles. To get that performance from the home center brand I have to really crank down with my thumb and index finger. The method used for marking the graduations also make this a superior tool. Starrett uses laser engraving. Not so with a less expensive brand. That means your graduations will (eventually) wear off. My cheapy 6 inch is already showing signs of wear after two years. The Starrett looks the same as when I took it out of the box-and I use it A LOT more. Over your lifetime you can by one Starrett or several of the home center brand. Oh... did I mention it's made in the USA? ## Frequently Bought Together - Starrett Steel Combination Square with Square Head - 12" Blade Length, Cast Iron Heads, Reversible Lock Bolt, Scriber, Spirit Level, 4R Graduation Type - 11H-12-4R - Starrett 6-Inch Spring-Tempered Steel Rule with Inch Graduations - Ideal for Metalworking and Engineering - Satin Chrome Finish, 4R Graduations, 3/64-Inch Thickness - C604RE-6 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/5146435-steel-combination-square-with-square-head-12-blade-length](https://www.desertcart.us/products/5146435-steel-combination-square-with-square-head-12-blade-length) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-14*