{"product_id":"precision-1-2-3-clamping-blocks-set-hardened-steel-23-holes-machining","title":"Precision 1-2-3 Clamping Blocks Set of 2 – Hardened Steel 23 Holes Metric \u0026 Imperial, 0.0001\" Accuracy for Machining Milling \u0026 Workshop Setup","description":"\u003ch2\u003ePrecision 1-2-3 Clamping Blocks – The Machinist’s Essential Reference Tool\u003c\/h2\u003e\n\n\u003cp\u003eWhen accuracy is everything, these precision 1-2-3 clamping blocks deliver. Supplied as a matched set of two, these hardened steel blocks are ground and hardened on all six sides to an exceptional accuracy of 0.0001” – making them an indispensable reference tool for any serious machinist, toolmaker, or workshop engineer.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in both metric (25-50-75mm) and imperial (1-2-3 inch) dimensions, these versatile hexahedron blocks are used for set-up, layout, and inspection jobs across a wide range of machine tools. The 23-hole pattern – including 5 threaded 3\/8-16 clamping holes and 18 additional holes – gives you maximum flexibility for fixturing and workholding applications.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e🔧 \u003cstrong\u003e0.0001\" Accuracy\u003c\/strong\u003e – Ground and hardened on all six sides for exceptional precision\u003c\/li\u003e\n\t\u003cli\u003e📦 \u003cstrong\u003eSet of 2 Matched Blocks\u003c\/strong\u003e – Supplied as a pair for consistent referencing\u003c\/li\u003e\n\t\u003cli\u003e🔩 \u003cstrong\u003e23 Holes\u003c\/strong\u003e – 5 threaded 3\/8-16 clamping holes + 18 additional holes\u003c\/li\u003e\n\t\u003cli\u003e📐 \u003cstrong\u003eMetric \u0026amp; Imperial\u003c\/strong\u003e – 25-50-75mm \/ 1-2-3 inch dimensions\u003c\/li\u003e\n\t\u003cli\u003e⚙️ \u003cstrong\u003eHardened Steel Construction\u003c\/strong\u003e – Scratch-resistant, durable, and long-lasting\u003c\/li\u003e\n\t\u003cli\u003e🎯 \u003cstrong\u003eMulti-Purpose\u003c\/strong\u003e – Ideal for set-up, layout, inspection, machining, and milling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\t\u003cthead\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth\u003eFeature\u003c\/th\u003e\n\t\t\t\u003cth\u003eDetails\u003c\/th\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/thead\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eQuantity\u003c\/td\u003e\n\t\t\t\u003ctd\u003e2 blocks (matched pair)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eMaterial\u003c\/td\u003e\n\t\t\t\u003ctd\u003eHardened steel\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eAccuracy\u003c\/td\u003e\n\t\t\t\u003ctd\u003e0.0001\"\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eDimensions (Metric)\u003c\/td\u003e\n\t\t\t\u003ctd\u003e25mm x 50mm x 75mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eDimensions (Imperial)\u003c\/td\u003e\n\t\t\t\u003ctd\u003e1\" x 2\" x 3\"\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eNumber of Holes\u003c\/td\u003e\n\t\t\t\u003ctd\u003e23 (5 threaded 3\/8-16 + 18 additional)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eShape\u003c\/td\u003e\n\t\t\t\u003ctd\u003eHexahedron (ground on all 6 sides)\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eSuitable For\u003c\/td\u003e\n\t\t\t\u003ctd\u003eMachining, milling, set-up, layout, inspection\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are 1-2-3 blocks used for in machining?\u003c\/strong\u003e\u003cbr\u003e\nA: 1-2-3 blocks are precision reference tools used to set up workpieces on machine tools, mills, and lathes. They provide accurate, repeatable positioning for set-up, layout, and inspection tasks in the workshop.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are these blocks compatible with standard milling machine fixtures?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes – the 3\/8-16 threaded holes are a standard size compatible with most milling machine clamping hardware and fixturing systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are these a good gift for a machinist or engineer?\u003c\/strong\u003e\u003cbr\u003e\nA: Absolutely – a quality set of precision 1-2-3 blocks makes an excellent gift for machinists, toolmakers, engineers, or anyone who works with machine tools professionally or as a hobby.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between the 23 holes?\u003c\/strong\u003e\u003cbr\u003e\nA: The 23 holes consist of 5 threaded 3\/8-16 holes for clamping and 18 additional unopened holes, giving you flexibility for a wide range of fixturing and workholding setups.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can these blocks be used for inspection and layout work?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes – the 0.0001\" accuracy and ground-on-all-sides construction make these blocks equally suitable for precision inspection, layout, and gauging tasks as well as machining set-up.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Are these blocks supplied as a matched pair?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, the set includes 2 matched precision blocks, ensuring consistent dimensions and accuracy across both pieces for reliable referencing and set-up work.\u003c\/p\u003e\n\n\u003ch2\u003eFast UK Shipping\u003c\/h2\u003e\n\n\u003cp\u003eShips from our UK warehouse. Enjoy \u003cstrong\u003efree delivery in 1–4 business days\u003c\/strong\u003e across the UK. Order today and elevate your workshop precision.\u003c\/p\u003e\n","brand":"ShopVora UK","offers":[{"title":"2PC","offer_id":47704591073458,"sku":null,"price":26.99,"currency_code":"GBP","in_stock":true},{"title":"4 Packs","offer_id":47704591106226,"sku":null,"price":41.99,"currency_code":"GBP","in_stock":true},{"title":"2 Packs","offer_id":47704591138994,"sku":null,"price":34.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/3831\/9794\/files\/aa62f929766a7276ad48bbedb2cd58ce.jpg?v=1784606374","url":"https:\/\/shopvorauk.com\/products\/precision-1-2-3-clamping-blocks-set-hardened-steel-23-holes-machining","provider":"ShopVora UK","version":"1.0","type":"link"}