--- product_id: 232758238 title: "Groz 6\" Spring Outside Caliper, 150mm Capacity Firm-Joint Caliper for OD Measurement, Bow Spring with Solid Adjusting Nut, Matte Finish Selected Steel for Machinists and Gunsmiths (01412)" brand: "groz" price: "31806CFA" currency: XOF in_stock: true category: "Groz" url: https://www.desertcart.sn/products/232758238-groz-6-spring-outside-caliper-150mm-capacity-firm-joint-caliper store_origin: SN region: Senegal --- # 150mm precision capacity Solid knurled adjusting nut Bow spring with roller pivot Groz 6" Spring Outside Caliper, 150mm Capacity Firm-Joint Caliper for OD Measurement, Bow Spring with Solid Adjusting Nut, Matte Finish Selected Steel for Machinists and Gunsmiths (01412) **Brand:** groz **Price:** 31806CFA **Availability:** ✅ In Stock ## Summary > 📐 Measure Like a Pro, Lock Like a Boss! ## Quick Answers - **What is this?** Groz 6" Spring Outside Caliper, 150mm Capacity Firm-Joint Caliper for OD Measurement, Bow Spring with Solid Adjusting Nut, Matte Finish Selected Steel for Machinists and Gunsmiths (01412) by groz - **How much does it cost?** 31806CFA 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/232758238-groz-6-spring-outside-caliper-150mm-capacity-firm-joint-caliper) ## Best For - groz enthusiasts ## Why This Product - Trusted groz brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** Top-rated tool with 4.6 stars from 269 reviews, favored by machinists and gunsmiths alike. - • **Glare-Free Steel:** Matte-finished selected alloy steel reduces bench glare and resists daily wear marks. - • **True-Reading Tension:** Bow spring tension and roller pivot ensure stable, side-deflection-free readings every time. - • **Precision that Sticks:** Lock in exact outside diameter measurements with a solid adjusting nut that prevents drift. - • **Versatile 6-Inch Range:** Perfectly sized for shafts, gun barrels, automotive parts, and general machining tasks. ## Overview The Groz 6" Spring Outside Caliper offers precise 150mm capacity measurements with a bow spring and roller pivot design that ensures stable, accurate readings. Crafted from matte-finished selected alloy steel, it minimizes glare and resists wear. Featuring a solid knurled adjusting nut for fine control and locking capability, this caliper is ideal for machinists, gunsmiths, and technicians working on shafts, gun barrels, and automotive parts. ## Description Stop second-guessing outside diameter readings. The Groz 6" Spring Outside Caliper is built for machinists, gunsmiths, and shop technicians who need to transfer an OD measurement from a workpiece to a rule, micrometer, or mating part without the setting drifting.The inward-curving legs are tensioned by a bow spring and ride on a roller pivot with a fulcrum stud that prevents side deflection. A solid knurled adjusting nut threads along the screw for fine control of the leg gap and locks the dimension in place. The body is selected steel with a matte finish that cuts glare under shop lighting.Capacity is 6 inches / 150 mm, suited to shaft diameters, machined cylinders, gun barrel OD, motorcycle and automotive components, and general layout and gauging tasks. Part of the Groz spring caliper family for transferring and comparing external dimensions. ## Features - TRANSFER OUTSIDE MEASUREMENTS WITH CONFIDENCE - Capture and compare outside diameters on shafts, machined cylinders, gun barrels, and round stock without losing your setting between the workpiece and the rule. - SELECTED STEEL CONSTRUCTION - Built from selected tool steel with a matte finish that reduces glare on the bench and resists handling marks across daily shop use. - BOW SPRING WITH ROLLER PIVOT - Bow-spring tensioning keeps the inward-curving legs loaded against the fulcrum stud, while the roller pivot prevents side deflection so readings stay true. - SOLID ADJUSTING NUT FOR FINE CONTROL - The solid knurled adjusting nut threads smoothly along the screw for precise leg-gap settings and locks position so the dimension holds during transfer. - 6 INCH / 150 MM CAPACITY - Sized for shaft diameters, motorcycle and automotive parts, gun barrel OD checks, and general machine shop layout work where outside calipers are specified. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B077XK2XWL | | Best Sellers Rank | #115,081 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #28 in Joint Calipers & Dividers | | Brand | Groz | | Brand Name | Groz | | Customer Reviews | 4.6 out of 5 stars 269 Reviews | | Global Trade Identification Number | 08901486014128 | | Item Type Name | Groz 01412 6" Spring Outside Caliper | | Item Weight | 0.11 kg | | Manufacturer | Groz | | Material | Alloy Steel | | Material Type | Alloy Steel | | Measurement Accuracy | +/-0.01 inches | | Model | 1412 | | Number of Items | 1 | | Part Number | 1412 | | Unit Count | 1 Count | ## Product Details - **Brand:** Groz - **Material:** Alloy Steel - **Measurement Accuracy:** +/-0.01 inches - **Manufacturer:** Groz - **Global Trade Identification Number:** 08901486014128 ## Images ![Groz 6" Spring Outside Caliper, 150mm Capacity Firm-Joint Caliper for OD Measurement, Bow Spring with Solid Adjusting Nut, Matte Finish Selected Steel for Machinists and Gunsmiths (01412) - Image 1](https://m.media-amazon.com/images/I/61+xeHTE2PL.jpg) ![Groz 6" Spring Outside Caliper, 150mm Capacity Firm-Joint Caliper for OD Measurement, Bow Spring with Solid Adjusting Nut, Matte Finish Selected Steel for Machinists and Gunsmiths (01412) - Image 2](https://m.media-amazon.com/images/I/61tqkyNevbL.jpg) ![Groz 6" Spring Outside Caliper, 150mm Capacity Firm-Joint Caliper for OD Measurement, Bow Spring with Solid Adjusting Nut, Matte Finish Selected Steel for Machinists and Gunsmiths (01412) - Image 3](https://m.media-amazon.com/images/I/816zwbQ48nL.jpg) ## Available Options This product comes in different **Size** options. --- ## 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/232758238-groz-6-spring-outside-caliper-150mm-capacity-firm-joint-caliper](https://www.desertcart.sn/products/232758238-groz-6-spring-outside-caliper-150mm-capacity-firm-joint-caliper) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-29*