--- product_id: 380054830 title: "Router Table Box Joint Jig with 1/4\", 3/8\" & 1/2\" Indexing Keys" brand: "rockler" price: "€ 283.10" currency: EUR in_stock: true reviews_count: 13 category: "Rockler" url: https://www.desertcart.at/products/380054830-router-table-box-joint-jig-with-1-4-3-8 store_origin: AT region: Austria --- # 3 precision brass indexing keys (¼”, ⅜”, ½”) Ergonomic easy-grip knobs for secure locking Smooth sliding sled with anti-slip tabs Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys **Brand:** rockler **Price:** € 283.10 **Availability:** ✅ In Stock ## Summary > 🛠️ Master the Art of Box Joints with Rockler’s Precision Power! ## Quick Answers - **What is this?** Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys by rockler - **How much does it cost?** € 283.10 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/380054830-router-table-box-joint-jig-with-1-4-3-8) ## Best For - rockler enthusiasts ## Why This Product - Trusted rockler brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Pro Kit:** Includes sled, MDF platform, three brass keys, soft-grip knobs, sacrificial fence, and detailed instructions for immediate precision routing. - • **Ergonomic Locking System:** Comfortable easy-grip knobs lock the sled and MDF platform securely into your router table’s miter slot. - • **Precision Perfect Joints:** Achieve flawless box joints with three interchangeable solid brass indexing keys for consistent finger spacing. - • **Effortless Glide & Control:** Smooth-sliding sled with long skis and built-in stops ensures square, accurate cuts every time. - • **Durable Low-Friction Platform:** Melamine-coated MDF fence reduces tear-out and enhances sliding performance for longer tool life. ## Overview The Rockler Router Table Box Joint Jig is a professional-grade woodworking accessory designed for small to medium box projects. Featuring three precision-machined solid brass indexing keys (¼”, ⅜”, ½”), a smooth sliding glass-filled nylon sled with built-in stops, and an ergonomic MDF platform with easy-grip knobs, this jig guarantees accurate, repeatable, and tight-fitting box joints. Its durable melamine coating minimizes tear-out, while the complete kit ensures you’re ready to elevate your joinery with confidence and ease. ## Description Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys | Box Joint Jig – Precise Box Joint Cuts – Router Table Jig – Three Indexing Keys – Accurate Alignment - desertcart.com Review: Another great Rockler product - Another quality tool from Rockler! The jig was very easy to put together with detailed instructions. The sliding action is smooth and the built in stops helped me from moving the wood I was cutting to far in either direction. I firmly believe this box joint jig is a great value for the money and has helped me quickly turn out the drawers I am making for my under workbench storage. Review: They said it couldn't be done - I was looking to get into small box-making in the simplest way possible. I used a portable router, with an array of portable tables and jigs. For 1/4 inch joints, I started with a Dewalt 600b cordless router, a Bosch portable workbench, a Rockler Trim Router Table, a good carbide spiral up cut bit, and and this Rockler Box Joint Jig. After several days of experimentation, I came up with some pretty good, repeatable box joints. The procedure is as follows: 1) Clamp the Router Trim Table to the work bench. 2) Loosely clamp the Box Joint Jig the the Trim Table. 3) For 1/4 inch jigs, I used a 0.25 drill bit to set the distance from the 1/4 inch brass key to the router bit. A set of feeler gauges can help zero in on the distance. 4) Clamp everything tight. 5) Use a digital gauge to set bit height. Set the height roughly 0.010 more than the mating material thickness. I used a Wixey WR25 3" Mini Digital Height Gauge. This gauge really makes things easy. 5) Press work piece tightly against brass key, and make a test cut. 6) With a 1/4 inch joint, that first pin thickness should be 0.245-0.250. If the thickness is less than 0.245, the fit will get sloppy. If it is more than 0.250, it will be too tight, and the joints will not go together. For me, about 0.248 is the sweet spot. Get some digital calipers, and learn how to use it. 7) A second cut isn't necessary to dial in the fit. Loosen the clamps, and tap the Box Jig left or right as necessary to achieve the 0.245-0.250 pin width that you are looking for. 8) After the first cut is dialed in, make sure subsequent cuts ae made by pressing the workpiece tightly against the brass key. The key is only about 0.243 inch in width, so this step is important. The 3/8 and 1/2 inch joints follow the same procedure. This method is working for me, particularly for small, one-off projects. You would want something more substantial for making larger quantities of joints. I want to stress, that using digital calipers, and a digital gauge for router bit depth really help make this, or any other project less frustrating. ## Features - Box Joint Jig: Make a strong, tight-fitting box joint router bit that is great for small to medium-sized boxes! This woodworking tool makes the perfect accessory for your router table. - Interchangeable Indexing Keys: Our router jig uses precision-machined solid brass indexing keys to ensure uniform finger spacing. The keys are included for three finger widths: ¼”, ⅜” & ½”. With improvements in design, these router accessories can be swapped and can be stored in slots on the sled. - Smooth Sliding Sled: The smooth-sliding router table sled features long ''skis'' that keep it square to the router bit and tabs on the bottom that stop the sled at the end of the cut. Lock it into the miter slot of your router table with our comfortable Easy-to-Grip knobs and you're ready to route. - MDF Platform: Place the MDF fence on your box joint jig to control tear out and apply router bit lubricant on the melamine-coated low-friction MDF platform for easy sliding and enhancing durability. The ergonomic knobs lock the platform into a ¾” miter slot. - What’s Included: Our router finger joint jig includes the following essential woodwork tools - 1 Melamine-coated MDF platform, 2 Soft-grip knobs with miter track hardware, 1 Glass-filled nylon sled, 1 sacrificial fence face, a ¼” brass indexing key, a ⅜” brass indexing key, a ½” brass indexing key, and an instruction manual, all aimed to help you perfect your box joint routing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07H7K4PK8 | | Best Sellers Rank | #96,372 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #222 in Power Tool Accessory Jigs | | Brand | ROCKLER | | Brand Name | ROCKLER | | Color | Yellow (Yellow) | | Customer Reviews | 4.3 out of 5 stars 544 Reviews | | Global Trade Identification Number | 05024763208546 | | Included Components | Router Table Box Joint Jig | | Item Dimensions | 12.99 x 11.26 x 3.7 inches | | Item Type Name | Rockler 422866 Router Table Box Joint Jig | | Item dimensions L x W x H | 12.99 x 11.26 x 3.7 inches | | Manufacturer | Rockler | | Manufacturer Part Number | 422866 | | Material | MDF | | Material Type | MDF | | Model Number | 422866 | | Number of Items | 1 | | Style | Modern | | Style Name | Modern | | UPC | 733175503228 733175295024 733353556985 | | Unit Count | 1 Count | ## Product Details - **Brand:** ROCKLER - **Color:** Yellow (Yellow) - **Global Trade Identification Number:** 05024763208546 - **Item dimensions L x W x H:** 12.99 x 11.26 x 3.7 inches - **Manufacturer:** Rockler - **Material:** MDF - **Number of Items:** 1 - **Style:** Modern - **UPC:** 733175503228 733175295024 733353556985 - **Unit Count:** 1 Count ## Images ![Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys - Image 1](https://m.media-amazon.com/images/I/71kC1YrnOoL.jpg) ![Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys - Image 2](https://m.media-amazon.com/images/I/71paevB6xbL.jpg) ![Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys - Image 3](https://m.media-amazon.com/images/I/81MQ4WjR4AL.jpg) ![Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys - Image 4](https://m.media-amazon.com/images/I/81tM3En4UFL.jpg) ![Router Table Box Joint Jig with 1/4", 3/8" & 1/2" Indexing Keys - Image 5](https://m.media-amazon.com/images/I/81P5x9pVScL.jpg) ## Questions & Answers **Q: can I make .125" joints with this kit?** A: It does not come with a .125 spacer but you could make one. It could be made of metal or hardwood perhaps and you would have to find a .125 upward spiral milling bit. Do not use a rabbiting bit. **Q: Is there any horizontal adjustment to make the tongues wider or narrower** A: The jig comes with 3 keys: 1/4, 3/8, and 1/2 inch. You can probably fabricate other sizes in between, but the jig is not big enough to accommodate much lager keys. They have another jig for that. **Q: This picture doesn't match the one on rockler's site -- is this an older version? which one will i receive if i order it?** A: They only make two models, this one and the XL version which also does 3/4 cuts. There is no 'older' model. **Q: I have a milling table and the distance from the strawberry to the rail where the rockler box joint is squeezed is 13.5 cm. would it be worth my table** A: Router Table Compatibility: Near edge of router table's miter track must be between 4-1/2'' and 6-1/4'' from the center of the router bit ## Customer Reviews ### ⭐⭐⭐⭐⭐ Another great Rockler product *by D***N on July 3, 2026* Another quality tool from Rockler! The jig was very easy to put together with detailed instructions. The sliding action is smooth and the built in stops helped me from moving the wood I was cutting to far in either direction. I firmly believe this box joint jig is a great value for the money and has helped me quickly turn out the drawers I am making for my under workbench storage. ### ⭐⭐⭐⭐⭐ They said it couldn't be done *by D***K on October 8, 2022* I was looking to get into small box-making in the simplest way possible. I used a portable router, with an array of portable tables and jigs. For 1/4 inch joints, I started with a Dewalt 600b cordless router, a Bosch portable workbench, a Rockler Trim Router Table, a good carbide spiral up cut bit, and and this Rockler Box Joint Jig. After several days of experimentation, I came up with some pretty good, repeatable box joints. The procedure is as follows: 1) Clamp the Router Trim Table to the work bench. 2) Loosely clamp the Box Joint Jig the the Trim Table. 3) For 1/4 inch jigs, I used a 0.25 drill bit to set the distance from the 1/4 inch brass key to the router bit. A set of feeler gauges can help zero in on the distance. 4) Clamp everything tight. 5) Use a digital gauge to set bit height. Set the height roughly 0.010 more than the mating material thickness. I used a Wixey WR25 3" Mini Digital Height Gauge. This gauge really makes things easy. 5) Press work piece tightly against brass key, and make a test cut. 6) With a 1/4 inch joint, that first pin thickness should be 0.245-0.250. If the thickness is less than 0.245, the fit will get sloppy. If it is more than 0.250, it will be too tight, and the joints will not go together. For me, about 0.248 is the sweet spot. Get some digital calipers, and learn how to use it. 7) A second cut isn't necessary to dial in the fit. Loosen the clamps, and tap the Box Jig left or right as necessary to achieve the 0.245-0.250 pin width that you are looking for. 8) After the first cut is dialed in, make sure subsequent cuts ae made by pressing the workpiece tightly against the brass key. The key is only about 0.243 inch in width, so this step is important. The 3/8 and 1/2 inch joints follow the same procedure. This method is working for me, particularly for small, one-off projects. You would want something more substantial for making larger quantities of joints. I want to stress, that using digital calipers, and a digital gauge for router bit depth really help make this, or any other project less frustrating. ### ⭐⭐⭐⭐ Tricky to dial in on the right size box joint. *by M***L on May 11, 2022* I've been using the jig for about 2 weeks to make a series of shop cabinets for my tools. The unit does work well with my router table (MCLS Bench Top) and DeWalt 618 router, but the jig is a little tricky to dial in on the right size for the interlocking joints. I even use a set of brass setup bars to establish the distance between the bit and the brass key on the jig but it's still tricky to get it just right. The waste material does seem to build up under the jig sled and you will have to clean it out after each side of your work is cut. That may be part of the problem if waste is not clearing as use index each cut. It is also difficult to see the cuts in progress since the bench top table is a little higher than eye level (not the fault of the Rockler jig). I use a clamp on the first cut to ensure the workpiece is tight against the brass key pin and fence and the jig does provide adequate space for clamping smaller workpieces. It might be nice for the piece to ride on a slide (like a cross cut sled) to avoid catching on the bit opening in the jig (a problem with the waste material buildup), although varying pin and notch sizes might make that more complicated. I will be building a less tall stand for the table top in the future, and see if I can improve the dust collection as well. I do like the jig and will continue to learn how to use it better, but plan to waste a few practice pieces for each project. ## Frequently Bought Together - Router Table Box Joint Jig - Finger Joint Indexing Keys w/Three Finger Widths ¼”, ⅜” & ½” - Stable MDF Router Fence w/Low-Friction Melamine Coating - Knobs to Lock Platform w/ ¾” Miter Slot - SPEED TIGER Carbide Spiral Router Bits Up Cut - ISEU1/4” Diameter, 1” Cutting Length, 2-1/2"OVL (1 Piece, 1/4") - for Wood, Oak, MDF, Aluminum – Mill Bits Sets for DIYers & Professionals - SpeTool Spiral Upcut Router Bit 1/2 Inch Shank with Extra Long Life Coating, Carbide CNC Router Bits End Mill for Wood Mortises Carving Engraving --- ## 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.at/products/380054830-router-table-box-joint-jig-with-1-4-3-8](https://www.desertcart.at/products/380054830-router-table-box-joint-jig-with-1-4-3-8) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-23*