--- product_id: 220632821 title: "CASOMAN 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: "β‚©77153" currency: KRW in_stock: true reviews_count: 13 category: "Casoman" url: https://www.desertcart.kr/products/220632821-casoman-9-pieces-extension-bar-set-1-4-3-8 store_origin: KR region: South Korea --- # Premium Chrome Vanadium steel alloy Corrosion-resistant black phosphate finish 9-piece versatile extension set CASOMAN 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:** β‚©77153 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Elevate your toolkit game with precision and power β€” don’t get left behind! ## Quick Answers - **What is 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 by casoman - **How much does it cost?** β‚©77153 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/220632821-casoman-9-pieces-extension-bar-set-1-4-3-8) ## 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 with a black phosphate finish for unmatched durability and corrosion resistance. - β€’ **Organized & Portable:** Comes in a sleek blow-molded carrying case to keep your tools organized and ready wherever you go. - β€’ **Secure Fit Technology:** Spring-loaded detent balls ensure your sockets stay locked in place under high torque pressure. - β€’ **Trusted Quality Assurance:** Meets ANSI standards and backed by a 1-year warranty for peace of mind on every project. - β€’ **All-in-One Drive Compatibility:** Seamlessly switch between 1/4", 3/8", and 1/2" drives for ultimate flexibility. ## Overview The CASOMAN 9 Pieces Extension Bar Set offers professional-grade versatility with 1/4", 3/8", and 1/2" drive sizes crafted from premium Chrome Vanadium steel. Its corrosion-resistant black phosphate finish and spring-loaded detent balls guarantee durability and secure socket fit, all neatly organized in a durable carrying case. Perfect for managers and pros who demand reliability and efficiency on every job. ## Description Tool Accessory Set Visit the Store Tool Accessory Set Visit the Store Automotive Socket Set Visit the Store Automotive Socket Set Deep Impact Socket Set Visit the Store Deep Impact Socket Set Bits Socket Set Visit the Store Bits Socket Set Socket Organizer Visit the Store Socket Organizer Magnetic Socket Organizer Visit the Store Magnetic Socket Organizer Tool boxes Visit the Store Tool boxes Tool boxes liner Visit the Store Tool boxes liner Universal Impact Socket Set Visit the Store Universal Impact Socket Set Review: They are what they are great extensions - Great price and good quality. Review: Nice variety of sizes - Strong, gets the job done, makes a great gift, and is a nice variety of sizes. ## 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 ANSI performance standards. It comes with 1 year quality warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B089GFQTQP | | Best Sellers Rank | #89,008 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #566 in Socket Sets | | Bit Compatibilities | 1/4", 3/8", 1/2" | | Brand | CASOMAN | | Brand Name | CASOMAN | | Customer Reviews | 4.8 out of 5 stars 2,775 Reviews | | Drive Bit Shank Style | square | | Drive System | Nutsetter | | Finish Type | corrosion-resistant black phosphate finish | | Finish Types | corrosion-resistant black phosphate finish | | Item Weight | 1580 Grams | | Manufacturer | CASOMAN | | Manufacturer Part Number | CS074 | | Material | Chrome Vanadium Steel | | Material Type | Chrome Vanadium Steel | | Model Number | CS074 | | Number of Pieces | 9 | | Set Name | CASOMAN 9 Pieces Extension Bar Set | | Unit Count | 1.0 Count | ## Product Details - **Brand:** CASOMAN - **Drive System:** Nutsetter - **Finish Type:** corrosion-resistant black phosphate finish - **Material:** Chrome Vanadium Steel - **Number of Pieces:** 9 ## Images ![CASOMAN 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) ![CASOMAN 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish - Image 2](https://m.media-amazon.com/images/I/71KBCTy0xyS.jpg) ![CASOMAN 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish - Image 3](https://m.media-amazon.com/images/I/71QeqCi4I1S.jpg) ![CASOMAN 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish - Image 4](https://m.media-amazon.com/images/I/71Ntq-p5q4S.jpg) ![CASOMAN 9 Pieces Extension Bar Set, 1/4", 3/8" and 1/2" Drive Socket Extension, Premium Chrome Vanadium Steel with Black Phosphate Finish - Image 5](https://m.media-amazon.com/images/I/61VqQmMmJvS.jpg) ## Available Options This product comes in different **Size** options. ## 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 ### ⭐⭐⭐⭐⭐ They are what they are great extensions *by G***D on February 1, 2026* Great price and good quality. ### ⭐⭐⭐⭐⭐ Nice variety of sizes *by T***N on April 29, 2026* Strong, gets the job done, makes a great gift, and is a nice variety of sizes. ### ⭐⭐⭐⭐⭐ Great product *by K***R on January 3, 2026* Great product ## 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.kr/products/220632821-casoman-9-pieces-extension-bar-set-1-4-3-8](https://www.desertcart.kr/products/220632821-casoman-9-pieces-extension-bar-set-1-4-3-8) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-05-19*