--- product_id: 19376264 title: "54-422-450-1, Mini-Mag The Original Protractor 2.375 x 2.375 x 1.375\"" brand: "fowler" price: "$457.96" currency: USD in_stock: true reviews_count: 11 category: "Fowler" url: https://www.desertcart.ec/products/19376264-54-422-450-1-mini-mag-the-original-protractor-2 store_origin: EC region: Ecuador --- # 360° digital angle display 250-hour battery life on standard 9V 35-lb magnetic pull for secure placement 54-422-450-1, Mini-Mag The Original Protractor 2.375 x 2.375 x 1.375" **Brand:** fowler **Price:** $457.96 **Availability:** ✅ In Stock ## Summary > 📏 Measure Like a Pro, Magnetically Secure Your Edge! ## Quick Answers - **What is this?** 54-422-450-1, Mini-Mag The Original Protractor 2.375 x 2.375 x 1.375" by fowler - **How much does it cost?** $457.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/19376264-54-422-450-1-mini-mag-the-original-protractor-2) ## Best For - fowler enthusiasts ## Why This Product - Trusted fowler brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Magnetic Mastery:** Embedded magnets with 35 lbs pull ensure hands-free, stable positioning on any metal surface. - • **Long-Lasting Power:** Standard 9V battery delivers up to 250 hours of uninterrupted use—work smarter, not harder. - • **All-Angle Versatility:** Full 360° measurement range covers every angle with 0.05° resolution for professional-grade results. - • **Compact & Durable Design:** Sleek 2.375" size fits perfectly in your toolkit, built tough for on-the-go pros. - • **Precision at Your Fingertips:** Ultra-accurate ±0.2° digital readings for flawless measurements every time. ## Overview The Fowler Mini-Mag Protractor is a compact, digital angle measuring tool featuring a 360° LCD display, ±0.2° accuracy, and embedded magnets with a powerful 35-lb pull. Designed for precision and convenience, it runs on a standard 9V battery lasting up to 250 hours, making it an essential instrument for professionals demanding reliable, hands-free angle measurements. ## Description Fowler 54-422-450-1, Mini-Mag The Original Protractor 2.375 x 2.375 x 1.375": desertcart.com: Tools & Home Improvement Review: One Point all the times. - I use this level for machining and electrical paperwork. This is by far one of the best degree finders that I have ever used. It’s extremely heavy it doesn’t have the light illumination but besides that it will go to zero every time all the time it’s extremely accurate. Review: Nice digital level for the price. - It was used to match the pinion angle on a rear differential to the transmission output shaft. Great tool for the job. Worked great. ## Features - Angle Measuring Tool: The mini-MAG protractor provides instant 360° digital display of any angle; has embedded magnets with a 3.5-lb pull on both sides and the bottom, making it ideal for a variety of measurements - Accurate and Precise Measurements: This digital angle gage features a resolution of 0.05°, accuracy of ±0.2° and repeatability of 0.05° - Long Battery Life: The mini-MAG uses a standard 9V battery that lasts for up to 250 hours - Dimensions: This digital protractor is 2.2 inches in length, 1.2 inches in width, and 2.2 inches in height - Embedded magnets with 35 pounds pull - Measuring range of 360 degrees (4 X 90 degrees) - Resolution of .05 degrees - Accuracy of +/- .1 degree - Repeatability of +/- .1 degree ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002RUCS9M | | Batteries Included? | No | | Batteries Required? | No | | Battery Cell Type | Alkaline | | Best Sellers Rank | #351,899 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #199 in Construction Protractors | | Color | Blue/Black | | Customer Reviews | 4.6 4.6 out of 5 stars (141) | | Date First Available | November 9, 2004 | | Display Style | LCD | | Included Components | Mini-MAG Protractor, 9V battery, screwdriver, fitted box, instructions | | Is Discontinued By Manufacturer | No | | Item Package Quantity | 1 | | Item Weight | 8.8 ounces | | Item model number | 54-422-450-1 | | Manufacturer | Fred V. Fowler Company, Inc. | | Measurement Accuracy | +/- 0.2 degrees | | Part Number | 54-422-450-1 | | Product Dimensions | 3.5 x 3.25 x 1.75 inches | | Size | 2.375 x 2.375 x 1.375" | | Special Features | digital | | Style | Mini-Mag Protractor | | Warranty Description | 1 yr warranty on material and workmanship | ## Images ![54-422-450-1, Mini-Mag The Original Protractor 2.375 x 2.375 x 1.375" - Image 1](https://m.media-amazon.com/images/I/61TY6DqbESL.jpg) ## Available Options This product comes in different **Color, Size, Style** options. ## Questions & Answers **Q: This could be attached to a rotary hammer drill to allow straight and leveled drilling in concrete?** A: This protractor has magnets on three sides and as long as your drill has an iron case, the magnet will adhere to it. I'm not sure what the constant banging of the from the drill will do to its accuracy. And trying to constantly watch it while you are drilling is not going to be easy. I might suggest a drill guide like this: Milescraft Drill Guide Rubber | 13350003 Copy and paste it in your browser. **Q: Is it made of aluminum or plastic?** A: It is metal and non-magnetic but it is painted silver so I'm assuming it's aluminum. It is heavy for it's size and so far very sturdy. I used it during a Jeep project and it hit the cement floor a few times without any problems. The case is scratched but not dented. **Q: Does it come with a storage case?** A: only if you ask nicely ## Customer Reviews ### ⭐⭐⭐⭐⭐ One Point all the times. *by M***R on August 28, 2023* I use this level for machining and electrical paperwork. This is by far one of the best degree finders that I have ever used. It’s extremely heavy it doesn’t have the light illumination but besides that it will go to zero every time all the time it’s extremely accurate. ### ⭐⭐⭐⭐⭐ Nice digital level for the price. *by T***D on February 26, 2023* It was used to match the pinion angle on a rear differential to the transmission output shaft. Great tool for the job. Worked great. ### ⭐⭐⭐⭐⭐ Works great! *by B***E on January 23, 2026* Perfect for setting a flat on a round part at the correct angle needed for machining. ## Frequently Bought Together - Fowler 54-422-450-1, Mini-Mag The Original Protractor 2.375 x 2.375 x 1.375" - Klein Tools 935DAG Digital Electronic Level and Angle Gauge, Measures 0 - 90 and 0 - 180 Degree Ranges, Measures and Sets Angles - Klein Tools 935DAGL Digital Level Angle Finder with Programmable Angles, Measures 0 - 90 and 0 - 180 Degree or Dual Axis Bullseye Ranges --- ## 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.ec/products/19376264-54-422-450-1-mini-mag-the-original-protractor-2](https://www.desertcart.ec/products/19376264-54-422-450-1-mini-mag-the-original-protractor-2) --- *Product available on Desertcart Ecuador* *Store origin: EC* *Last updated: 2026-04-22*