{"product_id":"rubert-318-microsurf-roughness-comparator-lapping-superfinishing-ra-0-025-0-2-m-n1-n4-4-4-patches","title":"Rubert 318 | Microsurf Roughness Comparator – Lapping \u0026 Superfinishing | Ra 0.025–0.2 µm, N1–N4, 4 + 4 Patches","description":"\u003cp\u003eThe Rubert 318 is a Microsurf comparator for lapped and superfinished cylindrical parts. It carries 4 + 4 patches covering Ra 0.025–0.2 µm, with Rz 0.4–1.0 µm for lapping and 0.4–1.6 µm for superfinishing (N1–N4). Microsurf plates are the lightweight 300 series for office and design use, and each comes in a plastic wallet with an instruction card, making the 318 convenient for drawing offices specifying finishes. For workshop use, the heavy-duty Series 100 equivalent is the 118.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMachining method: Cylindrical Lapping + Superfinishing\u003c\/li\u003e\n\u003cli\u003eNumber of patches: 4 + 4\u003c\/li\u003e\n\u003cli\u003eRa 0.025–0.2 µm, roughness grades N1–N4\u003c\/li\u003e\n\u003cli\u003eRz Lapping 0.4–1.0, superfinishing 0.4–1.6 µm\u003c\/li\u003e\n\u003cli\u003eLightweight Microsurf format in a plastic wallet with instruction card\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rubert","offers":[{"title":"Default Title","offer_id":67656279621745,"sku":"318","price":0.0,"currency_code":"AED","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/3930\/0977\/files\/microsurf_e374fe57-d1eb-46ea-a1d6-6b52819baf97.jpg?v=1791811304","url":"https:\/\/www.generaltechshop.sa\/products\/rubert-318-microsurf-roughness-comparator-lapping-superfinishing-ra-0-025-0-2-m-n1-n4-4-4-patches","provider":"General Tech Services LLC","version":"1.0","type":"link"}