{"product_id":"3-piece-combination-square-set-300-mm-12","title":"3‑Piece Combination Square Set – 300 mm \/ 12\"","description":"\u003cp\u003eDescription\u003cbr\u003eA workshop‑grade 3‑piece combination square set designed for accurate marking, layout, and measurement in metalworking, fabrication, and general engineering. The set includes a cast‑iron centering head for locating the center of cylindrical workpieces, a cast‑iron square\/miter head for 90° and 45° reference work, and a stainless‑steel 300 mm\/12\" rule with dual‑scale graduations. Built for reliability and repeatable accuracy, this set is suitable for layout, inspection, and setup tasks across a wide range of workshop applications.\u003cbr\u003e\u003cbr\u003eSpecifications\u003cbr\u003e•     Centering Head (Cast Iron) — Finds the centre of cylindrical workpieces\u003cbr\u003e•     Applicable diameter: Ø30–100 mm\u003cbr\u003e•     Accuracy: ±0.15 mm\u003cbr\u003e•     Square \/ Miter Head (Cast Iron) — 90° and 45° reference\u003cbr\u003e•     90° accuracy: ±8′\u003cbr\u003e•     45° accuracy: ±10′\u003cbr\u003e•     Stainless Steel Rule\u003cbr\u003e•     Length: 300 mm \/ 12\"\u003cbr\u003e•     Front graduations: 0.5 mm and 1\/32\"\u003cbr\u003e•     Back graduations: 1 mm and 1\/64\"\u003cbr\u003e\u003c\/p\u003e","brand":"Queensland Precision Machining","offers":[{"title":"Default Title","offer_id":43127385096235,"sku":"1012-0100","price":0.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/4119\/3003\/files\/Screenshot2026-03-06135830.jpg?v=1772769729","url":"https:\/\/precisiontoolstooling.au\/products\/3-piece-combination-square-set-300-mm-12","provider":"Precision Tools \u0026 Tooling ","version":"1.0","type":"link"}