--- product_id: 332615489 title: "9 Pieces Extension Bar Set, 1/4\", 3/8\" and 1/2\" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish" brand: "casoman" price: "AR$171804" currency: ARS in_stock: true reviews_count: 5 category: "Casoman" url: https://www.desertcart.com.ar/products/332615489-9-pieces-extension-bar-set-1-4-3-8-1 store_origin: AR region: Argentina --- # Premium Chrome-Vanadium steel alloy Corrosion-resistant black phosphate finish 9-piece versatile extension set 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish **Brand:** casoman **Price:** AR$171804 **Availability:** βœ… In Stock ## Summary > πŸ–€ Extend Your Reach, Elevate Your Craft! ## Quick Answers - **What is this?** 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish by casoman - **How much does it cost?** AR$171804 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/332615489-9-pieces-extension-bar-set-1-4-3-8-1) ## Best For - casoman enthusiasts ## Why This Product - Trusted casoman brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Crafted from 50BV30 Chrome-Vanadium steel for unmatched durability and strength. - β€’ **Organized Mobility:** Durable blow-molded case for effortless transport and quick access on the go. - β€’ **Sleek & Resilient Finish:** Black phosphate coating resists corrosion and wear, keeping your tools looking sharp. - β€’ **All-in-One Length Variety:** Nine extensions from 2 to 10 inches cover every tight spot and deep reach. - β€’ **Precision Fit & Secure Grip:** Spring-loaded detent balls ensure a rock-solid socket connection under high torque. ## Overview The CASOMAN 9 Pieces Extension Bar Set features premium 50BV30 Chrome-Vanadium steel with a corrosion-resistant black phosphate finish, offering nine versatile extension bars across 1/4", 3/8", and 1/2" drives. Engineered with spring-loaded detent balls for secure socket fitment, this set meets DIN standards and includes a durable carrying case, backed by a 1-year warrantyβ€”perfect for professionals demanding durability, precision, and portability. ## Description Description This CASOMAN 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish. The set includes 1/4" Dr.: 2-inch, 4-inch, 6-inch, 3/8" Dr.: 3-inch, 6-inch, 10-inch, 1/2" Dr.: 3-inch, 5-inch, 10-inch. The extension bar is Made from premium Chrome-Vanadium steel alloy (50BV30) with a corrosion-resistant black phosphate finish, providing the durability for a hard use. Spring loaded detent ball on adapter ends provide secure fit into sockets, delivering support when used with high torque impact drivers. It comes with a durable blow-molded carrying case for easy transportation, safe storage, and quick organization. All CASOMAN Tools meets or exceeds DIN performance standards. It comes with 1 year quality warranty. Include 1/4": 2-inch, 4-inch, 6-inch 3/8": 3-inch, 6-inch, 10-inch 1/2": 3-inch, 5-inch, 10-inch CASOMAN is a professional manufacturer of hand tools,rachet and all kinds of sockets products. We save customer's cost in each step of our operation,with a guarantee of high-quality and reliability. We delivery the most saving and best value to our customers.Choose the CASOMAN products and you will never worry about overpaying or any after sale service. All CASOMAN products come with 1 year quality gurantee. Review: Muy buenas extensiones - Extensiones de impacto de calidad Review: Very nice - Has a good and stable plastic cover which keeps all of them very tight in the position. All balls and the springs are well adjusted so no problem on the connection. I am not sure about the black coating but it looks very good, I dont think it will peel of easily. Well done πŸ‘πŸ» Price is ok πŸ‘πŸ» ## Features - Made from premium Chrome-Vanadium steel alloy (50BV30) with a corrosion-resistant black phosphate finish, providing the durability for a hard use. - Set include 9 piece extension bar, 1/4" Dr.: 2-inch, 4-inch, 6-inch, 3/8" Dr.: 3-inch, 6-inch, 10-inch, 1/2" Dr.: 3-inch, 5-inch, 10-inch. - Spring loaded detent ball on adapter ends provide secure fit into sockets, delivering support when used with high torque impact drivers. - It comes with a durable blow-molded carrying case for easy transportation, safe storage, and quick organization. - Meets or exceeds DIN performance standards. It comes with 1 year quality warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089GFQTQP | | Best Sellers Rank | #138,480 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #247 in Socket Wrench Sets | | Brand | CASOMAN | | Brand Name | CASOMAN | | Customer Reviews | 4.8 out of 5 stars 2,129 Reviews | | Finish Types | corrosion-resistant black phosphate finish | | Head Style | Fixed Square | | Head style | Fixed Square | | Item Length | 254 Millimeters | | Item Weight | 1580 Grams | | Item length | 254 Millimeters | | Item package quantity | 1 | | Item weight | 1580 Grams | | Manufacturer | CASOMAN | | Manufacturer Part Number | CS074 | | Material | Chrome Vanadium Steel | | Material Type | Chrome Vanadium Steel | | Model Number | CS074 | | Operation Mode | Mechanical | | Package Quantity | 1 | | Set Name | 9 Pieces Extension Bar Set | | Unit Count | 1 Count | ## Product Details - **Brand:** CASOMAN - **Item length:** 254 Millimeters - **Material:** Chrome Vanadium Steel - **Finish type:** corrosion-resistant black phosphate finish - **Number of pieces:** 9 ## Images ![9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish - Image 1](https://m.media-amazon.com/images/I/61enzMPTVIS.jpg) ## Questions & Answers **Q: Can these fit power wrench** A: Yes I use them with my power tools **Q: Are these impact rated** A: The material of this extension bars is CRV steel, not CR-MO. **Q: How do I warranty them? One of the detent balls on my 1/4 inch extension fell out** A: Send it back to Amazon.. **Q: made in??** A: Made in China. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Muy buenas extensiones *by O***. on 13 May 2026* Extensiones de impacto de calidad ### ⭐⭐⭐⭐⭐ Very nice *by F***R on 29 September 2025* Has a good and stable plastic cover which keeps all of them very tight in the position. All balls and the springs are well adjusted so no problem on the connection. I am not sure about the black coating but it looks very good, I dont think it will peel of easily. Well done πŸ‘πŸ» Price is ok πŸ‘πŸ» ### ⭐⭐⭐⭐⭐ Good Quilty for money *by K***S on 22 January 2026* Really good quality iteam ## Frequently Bought Together - CASOMAN 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish - NEIKO 30249A 5 Piece Impact Socket Adapter Set, Standard SAE, 1/4, 3/8, 1/2" Cr-V Steel Impact Driver & Wrench Conversion Kit Socket Reducer, Locking Socket Adapter Set - EPAuto Impact Universal Joint Set, Cr-V,3 Pieces --- ## 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.com.ar/products/332615489-9-pieces-extension-bar-set-1-4-3-8-1](https://www.desertcart.com.ar/products/332615489-9-pieces-extension-bar-set-1-4-3-8-1) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-10-15*