--- product_id: 583719953 title: "Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit" brand: "taytools" price: "€ 0.51" currency: EUR in_stock: false reviews_count: 5 url: https://www.desertcart.pt/products/583719953-taytools-pair-hardened-steel-123-blocks-and-attachment-hardware-kit store_origin: PT region: Portugal --- # Precision ground Β±0.0001" flatness & parallelism Flush internal hardware for seamless block joining Hardened tool steel RC 56-60 Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit **Brand:** taytools **Price:** € 0.51 **Availability:** ❌ Out of Stock ## Summary > πŸ”§ Elevate your precision game β€” because every micron counts! ## Quick Answers - **What is this?** Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit by taytools - **How much does it cost?** € 0.51 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/583719953-taytools-pair-hardened-steel-123-blocks-and-attachment-hardware-kit) ## Best For - taytools enthusiasts ## Why This Product - Trusted taytools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Rock-Solid Durability:** Crafted from hardened tool steel (RC 56-60) to withstand the toughest shop environments. - β€’ **Versatile 23-Hole Design:** Multiple tapped and untapped holes enable endless custom setups and secure fastening options. - β€’ **Seamless Modular Assembly:** Innovative attachment kit allows flush, hardware-hidden block configurations in every possible orientation. - β€’ **Compact & Organized Storage:** Comes in a sleek telescoping plastic tube to keep your precision tools protected and ready. - β€’ **Unmatched Precision Engineering:** Ground to within one ten-thousandth of an inch for flawless machine setup and inspection. ## Overview The Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit delivers industrial-grade precision with hardened tool steel blocks ground to Β±0.0001" flatness and parallelism. Featuring 23 holes per block and a patent-pending hardware kit, it enables seamless, flush joining of blocks in any configuration without exposed fasteners. Ideal for machine setup, layout, and inspection, this kit is a must-have for professionals demanding accuracy and modular versatility in their workshop. ## Description 123 blocks coupled with our attachment hardware kit have an almost endless array of uses in the shop. They can be used for machine set up, layout and inspection. Specifications: 1-2-3 Block Set: 23 Hole: Made of hardened tool steel (RC 56-60) Precision ground on all six sides. Overall size within +/- 0.0001" (one ten thousandth of an inch) Flatness and parallelism within +/- 0.0001" (one ten thousandth of an inch) Squareness on all sides to within +/- 0.0003" per inch (three ten thousandths of an inch) Pairs are matched to a tolerance of 0.0002" (two ten thousandths of an inch) Two (2) pieces per set 23 each .340" through holes (5 holes tapped with 3/8" x 16 TPI threads and 18 holes are untapped). Note: these blocks cannot be bolted together without exposed hardware. In order to attach multiple blocks together with no exposed hardware you will require the Taytools 123 Block Hardware Attachment Kit. Approximate weight per block: 430 grams/.95 pounds 123 Block Hardware Attachnent Kit 123 Blocks are a common accessory found in nearly every machine shop machine shop and are useful for numerous work support, set up and inspection tasks. 123 Blocks are even becoming more coming on woodworking and DIY shops. What makes 123 block so useful is they’re made from hardened steel and precisely ground (within 0.0002”) to 1” x 2” x 3” with all sides being square to each other. Many inexpensive 123 Blocks contain numerous holes allowing them to be bolted together to increase their usefulness. Several problems arise when attempting to join several blocks together: 1) the holes in the sides and faces are not the same distance from the edge and when different faces are bolted together these are steps or offsets, and 2) using readily available bolts and nuts will leave hardware proud of the block’s surface interfering with the task at hand. This 123 Block Attachment Hardware Kits addresses the above bolting limitations. This hardware allows joining blocks together with all hardware buried within the blocks. The hardware is also slightly smaller than the holes allowing edges and faces to be joined together with faces being flush with each other. This hardware kits contains the following parts: two each 7/8” long by 5/16” diameter 8-32 threaded dowels, two each 7/8” long by 5/16” diameter through hole dowels that fit 8-32 bolts, two each of the following length 8-32 Allen Head Cap Screws 1-1/2”, 2” and 2-1/2”, 9/64” hex key and a small flat screwdriver tip. To use, insert a through hole dowel into a block hole and thread a screw through the hole. Next insert a threaded dowel into a hole in another block and screw and tighten the screw t into this nut to secure two blocks together. Each dowel has a straight screwdriver slot in line with the hole to assist in getting the dowels perfectly lined up to accept the bolts. The included screwdriver tip can be inserted in the slot to help in getting the dowels lined up to accept screws. Using this hardware allows two blocks to be attached to each other in literally every possible configuration. Comes in telescoping plastic storage tube. Patent pending. Review: Great 1-2-3 blocks Review: Well made and square ## Features - 123 blocks coupled with our attachment hardware kit have an almost endless array of uses in the shop. They can be used for machine set up, layout and inspection. - 1-2-3 23 Hole Blocks are made of hardened tool steel (RC 56-60) and precision ground on all six sides. Overall size within +/- 0.0001" (one ten thousandth of an inch) Flatness and parallelism within +/- 0.0001" (one ten thousandth of an inch) Squareness on all sides to within +/- 0.0003" per inch (three ten thousandths of an inch) Pairs are matched to a tolerance of 0.0002" (two ten thousandths of an inch). Two (2) pieces per set . - Blocks have 23 each .340" through holes (5 holes tapped with 3/8" x 16 TPI threads and 18 holes are untapped). Note: these blocks cannot be bolted together without exposed hardware. In order to attach multiple blocks together with no exposed hardware you will require the Taytools 123 Block Hardware Attachment Kit. Approximate weight per block: 430 grams/.95 pounds. - 123 Block Hardware Attachnent Kit allows joining blocks together with all hardware buried within the blocks. The hardware is also slightly smaller than the holes allowing edges and faces to be joined together with faces being flush with each other. - This hardware kit contains the following parts: two each 7/8” long by 5/16” diameter 8-32 threaded dowels, two each 7/8” long by 5/16” diameter through hole dowels that fit 8-32 bolts, two each of the following length 8-32 Allen Head Cap Screws 1-1/2”, 2” and 2-1/2”, 9/64” hex key and a small flat screwdriver tip. - Using this hardware allows two blocks to be attached to each other in literally every possible configuration. Comes in telescoping plastic storage tube. Patent pending. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C4W1XZWB | | Batteries Required? | No | | Customer Reviews | 4.5 4.5 out of 5 stars (86) | | Date First Available | 17 Nov. 2023 | | Included components | 2 each 123 blocks with 23 holes and attachment kit | | Item Weight | 989 g | | Manufacturer | Taylor Toolworks | | Manufacturer reference | 107591 | | Measurement Accuracy | 0.0001" | | Part number | 107591 | | Product Dimensions | 5.08 x 10.16 x 15.24 cm; 989 g | ## Images ![Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit - Image 1](https://m.media-amazon.com/images/I/71CptXwPnwL.jpg) ![Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit - Image 2](https://m.media-amazon.com/images/I/81I7CepoAPL.jpg) ![Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit - Image 3](https://m.media-amazon.com/images/I/61JNpNa8wgL.jpg) ![Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit - Image 4](https://m.media-amazon.com/images/I/71Hsym6vAeL.jpg) ![Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit - Image 5](https://m.media-amazon.com/images/I/71cJDeKNbjL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great 1-2-3 blocks *by S***N on 4 August 2025* ### ⭐⭐⭐⭐⭐ Well made and square *by R***W on 19 February 2025* ### ⭐⭐⭐⭐⭐ Great Setup Blocks *by T***E on 8 November 2025* ## Frequently Bought Together - Taytools Pair Hardened Steel 123 Blocks and Attachment Hardware Kit - Milescraft 4009 Fence Clamps - 2 pack Universal Clamps with 3/8" Rod for Table Saws, Mitre Saws, Router Tables and Clamping Squares - Milescraft 3406 GrabberPRO - Push block for Table Saws, Router Tables, Band Saws & Jointers --- ## 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.pt/products/583719953-taytools-pair-hardened-steel-123-blocks-and-attachment-hardware-kit](https://www.desertcart.pt/products/583719953-taytools-pair-hardened-steel-123-blocks-and-attachment-hardware-kit) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-06-25*