--- product_id: 7745285 title: "KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench" brand: "klein tools" price: "£37.42" currency: GBP in_stock: true reviews_count: 13 category: "Klein Tools" url: https://www.desertcart.co.uk/products/7745285-klein-tools-kt223x4-ins-linemans-insulating-4-in-1-box store_origin: GB region: United Kingdom --- # 1000V ASTM Insulated Safety Reverse Ratcheting Action 4 Sizes in 1 Compact Tool KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench **Brand:** klein tools **Price:** £37.42 **Availability:** ✅ In Stock ## Summary > ⚡ Power through your toughest jobs with Klein’s 4-in-1 insulated wrench — safety and speed in one grip! ## Quick Answers - **What is this?** KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench by klein tools - **How much does it cost?** £37.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/7745285-klein-tools-kt223x4-ins-linemans-insulating-4-in-1-box) ## Best For - klein tools enthusiasts ## Why This Product - Trusted klein tools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Reverse Ratchet:** 48-tooth gear and reversible switches deliver smooth, fast operation even with gloves on. - • **Unmatched Electrical Safety:** ASTM 1505-10 certified 1000V insulation keeps you protected on high-voltage jobs. - • **Quadruple Socket Versatility:** Four essential 12-point socket sizes (1/2", 9/16", 5/8", 3/4") in one sleek wrench for ultimate efficiency. - • **Built for the Lineman Lifestyle:** Durable enclosed gears and larger pawls ensure dirt resistance and glove-friendly adjustments on the go. - • **See-Through Handle Transparency:** Instantly verify tool integrity with a clear insulating handle—no guesswork, just safety. ## Overview The Klein Tools KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench is a professional-grade, ASTM-certified 1000V insulated tool featuring a transparent handle for safety verification, four versatile 12-point socket sizes, and a high-precision reverse ratcheting mechanism. Designed for linemen and electrical professionals, it combines durability, efficiency, and glove-friendly operation in a single compact wrench. ## Description The Klein Tools Lineman's Insulating 4-in-1 Box Wrench is the only double ended 4-in-1 wrench on the market to meet the ASTM standard 1000V rating. It features a transparent handle that shows the metal ends of the wrench are not touching. The solid, durable wrench features four 12 point socket sizes: 1/2'', 9/16'', 5/8'', and 3/4''. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857. Review: Works like a charm - This tool was recommended to me by a Lineman and I don't think I will ever stop using box wrenches. I gives amazing speed and efficiency. Excellent tool, great work Klein. Thanks desertcart. Review: It is a very good tool that gets the job done. - I bought this tool for my husband and he loves it very much. ## Features - BOX WRENCH MEETS STANDARDS: ASTM 1505-10 standard 1000V rating - SEE-THROUGH INSULATING HANDLE: Confirms metal ends are not connected - 4 SIZES IN 1 TOOL: 1/2-Inch, 9/16-Inch, 5/8-Inch and 3/4-Inch sizes; 12 point sockets - REVERSE RATCHETING ACTION: With reversing switches on each end of the wrench - PROTECTION FROM DIRT AND DEBRIS: With enclosed gear mechanisms - 48 TOOTH COUNT: Higher gear tooth count helps reduce the swing arc - LARGER PAWL: Design can be switched even while wearing class 2 gloves ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006FXPYK2 | | Best Sellers Rank | #29,650 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #22 in Box-End Wrenches | | Brand | KLEIN TOOLS | | Brand Name | KLEIN TOOLS | | Color | Transparent | | Customer Reviews | 4.7 out of 5 stars 1,067 Reviews | | End Style | hang hole | | Finish Types | Painted | | Global Trade Identification Number | 00092644680281 | | Head Style | Box End | | Included Components | Lineman's Insulating 4-in-1 Box Wrench | | Is Non Sparking | Yes | | Is Racheting | Yes | | Item Length | 9 Inches | | Item Package Quantity | 1 | | Item Type Name | Box wrench | | Item Weight | 11.2 Ounces | | Jaw Capacity | 0.75 Inches | | Manufacturer | Klein Tools | | Manufacturer Part Number | KT223X4-INS | | Manufacturer Warranty Description | 1 year manufacturer | | Material | Blend | | Material Type | Blend | | Measurement Standard | SAE (Inch) | | Model Number | KT223X4-INS | | Operation Mode | Mechanical | | Package Quantity | 1 | | Point Count | 12 | | UPC | 092644680281 | | Unit Count | 1.0 Count | | Voltage | 1000 Volts | | Wrench Length Style | standard | ## Product Details - **Brand:** KLEIN TOOLS - **Color:** Transparent - **Item Length:** 9 Inches - **Item Weight:** 11.2 Ounces - **Material:** Blend ## Images ![KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench - Image 1](https://m.media-amazon.com/images/I/418yJEmQoaL.jpg) ![KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench - Image 2](https://m.media-amazon.com/images/I/41UVbaF38QL.jpg) ![KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench - Image 3](https://m.media-amazon.com/images/I/51EuolCuRTL.jpg) ![KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench - Image 4](https://m.media-amazon.com/images/I/51nFiYRfQKL.jpg) ![KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench - Image 5](https://m.media-amazon.com/images/I/515ZuVzeZOL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works like a charm *by J***X on January 15, 2026* This tool was recommended to me by a Lineman and I don't think I will ever stop using box wrenches. I gives amazing speed and efficiency. Excellent tool, great work Klein. Thanks Amazon. ### ⭐⭐⭐⭐⭐ It is a very good tool that gets the job done. *by A***Y on January 23, 2026* I bought this tool for my husband and he loves it very much. ### ⭐⭐⭐⭐⭐ A little bulky *by C***N on March 17, 2026* Works good for OH stuff but not great for tight spaces. Still nice to have 4 different sizes instead of just 2 ## Frequently Bought Together - KLEIN TOOLS KT223X4-INS Lineman's Insulating 4-in-1 Box Wrench - Klein Tools 51A Tool Pouch, Utility Pouch for Carrying Nuts and Bolts, with Interior Pocket, No. 10 Canvas, 9 x 3.5 x 10-Inch - KLEIN TOOLS KT155T 6-in-1 Lineman's Ratcheting Wrench with Bolt Through Design and Bright Yellow Socket --- ## 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.co.uk/products/7745285-klein-tools-kt223x4-ins-linemans-insulating-4-in-1-box](https://www.desertcart.co.uk/products/7745285-klein-tools-kt223x4-ins-linemans-insulating-4-in-1-box) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-09*