--- product_id: 608722077 title: "78311 11-Piece 3/8\" Drive 1/2 Size Socket Set - 9.5-19.5mm for Undersized, Swollen or Damaged Hardware" brand: "astro tools" price: "€ 90.94" currency: EUR in_stock: true category: "Astro Tools" url: https://www.desertcart.gr/products/608722077-78311-11-piece-3-8-drive-1-2-size-socket store_origin: GR region: Greece --- # 9.5-19.5mm range covers tricky sizes 11-piece precision socket set 0.5mm under/over sizing for damaged bolts 78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5-19.5mm for Undersized, Swollen or Damaged Hardware **Brand:** astro tools **Price:** € 90.94 **Availability:** ✅ In Stock ## Summary > 🔩 Master every bolt, even the stubborn ones! ## Quick Answers - **What is this?** 78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5-19.5mm for Undersized, Swollen or Damaged Hardware by astro tools - **How much does it cost?** € 90.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/608722077-78311-11-piece-3-8-drive-1-2-size-socket) ## Best For - astro tools enthusiasts ## Why This Product - Trusted astro tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Compatibility:** Works seamlessly with both metric and SAE fasteners by adjusting hex dimensions. - • **Hammer-Ready Durability:** Built tough for use with hand tools and impact wrenches, ensuring reliable performance under pressure. - • **Versatile 11-Piece Range:** Covers 9.5mm to 19.5mm, bridging the gap between standard sizes for flawless fastening. - • **Save Time & Avoid Stripped Bolts:** Eliminate guesswork and frustration with sockets designed to fit where standard sets fail. - • **Precision Fit for Imperfect Hardware:** Engineered to tackle rounded, swollen, or corroded bolts with half-size increments. ## Overview The Astro Tools 78311 11-Piece 3/8" Drive 1/2 Size Socket Set offers a specialized 9.5-19.5mm range with 0.5mm under and over sizing to fit damaged, swollen, or corroded hardware. Ideal for professionals and DIYers facing imperfect fasteners, this durable set works with both metric and SAE bolts and is compatible with hand tools and impact wrenches for versatile, reliable use. ## Description The Astro Tools 78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5 - 19.5mm is designed for undersized, swollen, or damaged hardware. Have you ever grabbed, for example, a 13mm socket and it's too tight, but a 14mm feels loose? And it's not SAE? While perfect-fitting sockets are ideal, not every bolt and nut on vehicles remains factory perfect to the millimeter over time and service life. However, this set allows the use of 0.5mm under sockets for rounded and damaged bolts and nuts, and the use of 0.5mm over sockets for swollen or corroded bolts and cap-covered nuts. For hand tools and impact wrenches, use a hammer to fit 1/2 size under sockets where needed. ## Features - Ever grab a 13mm socket and it's too tight to fit, but 14mm feels lose? And it's not SAE? - Not every bolt and nut on vehicles remain factory perfect to the millimeter over time and service life - Use 0.5mm under sockets for rounded and damaged bolts and nuts, use 0.5mm over for swollen or corroded bolts and cap covered nuts - For hand tools and impact wrenches, use a hammer to fit 1/2 size under sockets where needed - Also works on SAE fasteners by stepping down the effective hex dimension on worn out hardware ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01JBLB8Q8 | | Best Sellers Rank | #311,463 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,620 in Socket Sets | | Bit Compatibilities | Undersized, swollen, or damaged hardware | | Bit Set Composition | Bit Set | | Brand | Astro Tool | | Brand Name | Astro Tool | | Customer Reviews | 4.8 out of 5 stars 107 Reviews | | Drive Bit Application | automotive | | Drive Bit Shank Style | 3/8" Drive Shank | | Drive System | Hex | | Finish Type | Black Oxide | | Finish Types | Black Oxide | | Global Trade Identification Number | 00745227081561 | | Included Components | 11-PC 3/8" Drive 1/2 Size Socket Set for Undersized, Swollen or Damaged Hardware | | Item Length | 1.5 inches | | Item Type Name | Astro Tools 78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5 - 19.5mm for Undersized, Swollen or Damaged Hardware | | Item Weight | 16 ounces | | Manufacturer | Astro Tools | | Manufacturer Part Number | 78311 | | Manufacturer Warranty Description | Manufacturer Warranty | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Number | 78311 | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 11 | | Set Name | Astro Tools 78311 11-Piece 3/8" Drive 1/2 Size Socket Set | | UPC | 745227081561 | | Unit Count | 1 Count | ## Product Details - **Brand:** Astro Tools - **Finish type:** Black Oxide - **Item length:** 19.5 Millimetres - **Material:** Alloy Steel - **Number of pieces:** 11 ## Images ![78311 11-Piece 3/8" Drive 1/2 Size Socket Set - 9.5-19.5mm for Undersized, Swollen or Damaged Hardware - Image 1](https://m.media-amazon.com/images/I/51iRIoEwZbL.jpg) ## Available Options This product comes in different **Style** 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.gr/products/608722077-78311-11-piece-3-8-drive-1-2-size-socket](https://www.desertcart.gr/products/608722077-78311-11-piece-3-8-drive-1-2-size-socket) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-14*