--- product_id: 19624064 title: "Starrett Machinists' Level, Ground and Graduated Main Vial, 4\" Length" brand: "starrett" price: "209389CFA" currency: XOF in_stock: true category: "Starrett" url: https://www.desertcart.sn/products/19624064-starrett-machinists-level-ground-and-graduated-main-vial-4-length store_origin: SN region: Senegal --- # Involute groove for perfect centering Adjustable vial with knurled knob Precision-machined cast iron base Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length **Brand:** starrett **Price:** 209389CFA **Availability:** ✅ In Stock ## Summary > 🎯 Level up your craft with Starrett precision! ## Quick Answers - **What is this?** Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length by starrett - **How much does it cost?** 209389CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/19624064-starrett-machinists-level-ground-and-graduated-main-vial-4-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 - • **Compact Yet Mighty:** Lightweight 6.4 oz design fits perfectly in your toolkit without compromising performance. - • **Pinpoint Accuracy Every Time:** Adjustable main vial ensures flawless leveling with quick, precise calibration. - • **Trusted Heritage, Made in the USA:** Over 140 years of Starrett innovation packed into a compact 4-inch powerhouse. - • **Built to Last, Built for Precision:** Durable cast iron base with a fine-machined finish guarantees long-term reliability. - • **Ergonomic Design for Pro-Level Work:** Special involute groove offers superior seating on round surfaces, enhancing accuracy. ## Overview The Starrett Machinists' Level is a 4-inch precision tool featuring an adjustable main vial housed in a satin brass tube, mounted on a cast iron base with a finely machined reference surface. Its ergonomic involute groove design ensures accurate seating on round workpieces, making it ideal for machine shops and tool rooms. Proudly made in the USA, this durable and lightweight level delivers exceptional accuracy and reliability for professional machinists. ## Description Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length | for Machine Shop and Tool Room Use, Without Case and Cross Test Vial, 98-4: Machinist Tools: desertcart.com: Tools & Home Improvement ## Features - Adjustable - The vials are adjustable to a positive setting. It can be adjusted by turning the knurled knob on the side of the level, making it easy for quick leveling tasks. - Durable Fine Finish - The base is made from cast iron and is precision-machined on the reference surface to increase durability. The vial is housed in a satin finished brass tube with a friction-fit closing cover to prevent breakage. - Ergonomic - The base of the levels features an involute groove between the bearing flats for accurate seating on round work. This groove has a special involute design, permitting better centering and greater capacity to handle larger rounds. - The Exceptional Tool - Machinist levels provide greater accuracy than other construction levels. These levels should be used when the variability of the reference plane is within the range of the level's sensitivity. - The Standard for Excellence - Proudly made in the USA, Starrett combines over 140 years of American heritage and innovation with globally sourced materials to deliver exceptional quality tools and products. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002FUO6S | | Best Sellers Rank | #57,578 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #95 in Levels | | Brand Name | Starrett | | Color | Silver | | Customer Reviews | 4.6 4.6 out of 5 stars (839) | | Global Trade Identification Number | 00049659504408 | | Included Components | Unit^Instruction Guide | | Item Dimensions L x W | 4"L x 1.5"W | | Item Highlight | for Machine Shop and Tool Room Use, Without Case and Cross Test Vial, 98-4 | | Item Type Name | bubble | | Item Weight | 6.4 ounces | | Manufacturer | Starrett | | Manufacturer Part Number | 98-4 | | Manufacturer Warranty Description | One Year on defects in material and workmanship | | Material Type | Cast Iron | | Model Number | 98-4 | | Number of Items | 1 | | Operation Mode | Manual | | Style Name | Without Case | | UPC | 049659504408 049659623451 | ## Product Details - **Brand:** Starrett - **Color:** Silver - **Material:** Cast Iron - **Product Dimensions:** 4"L x 1.5"W - **Style:** Without Case ## Images ![Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length - Image 1](https://m.media-amazon.com/images/I/51dosd3A1tL.jpg) ![Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length - Image 2](https://m.media-amazon.com/images/I/3132QN0rXWL.jpg) ![Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length - Image 3](https://m.media-amazon.com/images/I/41pIFkWPWHL.jpg) ![Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length - Image 4](https://m.media-amazon.com/images/I/51y2vMVf0qL.jpg) ![Starrett Machinists' Level, Ground and Graduated Main Vial, 4" Length - Image 5](https://m.media-amazon.com/images/I/31noUcZ5J7L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: Don't you need to find a true level item to calibrate this level?** A: It is possible to level a "level" by flipping it 180 degrees (end-for-end) and setting it up to read exactly the same number of divisions off of ideal. Alternately, one can set up a local "true level" by shimming a surface until it reads the same with the level flipped 180 degrees... In any case "level" can be established as derived standard. **Q: Is this a 0005" per 10" master level?** A: No that is a 4 inch 98 level good to .005 if an inch. **Q: how do you calibrate this** A: Find a pretty level surface set 98 on mark with sharpee the edges.. on one end of level are hex nuts above and below that is your ajustment point with level on surface and marked with sharpee look at bubble now turn level 180 degree make sure to put the level back into the marked area look at bubble now a just .. **Q: are the screw and stud supposed to be centered on the post? The one I received had the holes off center.** A: The upper part is an unmachined casting, but I am sure that Starret makes sure that the holes are drilled centered to the prizm below. It is not relevent that the hole is not centered in the post. Just my two cents. ## Frequently Bought Together - Starrett Machinists' Level with Ground and Graduated Main Vial - Ideal for Machine Shop and Tool Room Use - 4" (100mm) Length, Without Case and Cross Test Vial - 98-4 - Starrett Machinists' Level with Ground and Graduated Main Vial - Enhanced Accuracy for Perfect Surface Alignment - 6" Length, 1-3/16" Width, Without Case - 98-6 - WEN 10423 3 x 2 x 1-Inch Steel-Hardened Precision 123 Blocks, Two 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.sn/products/19624064-starrett-machinists-level-ground-and-graduated-main-vial-4-length](https://www.desertcart.sn/products/19624064-starrett-machinists-level-ground-and-graduated-main-vial-4-length) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-08*