{"product_id":"rubert-128-series-100-roughness-comparator-vertical-grinding-ra-0-2-6-4-m-n4-n9-6-patches","title":"Rubert 128 | Series 100 Roughness Comparator – Vertical Grinding | Ra 0.2–6.4 µm, N4–N9, 6 Patches","description":"\u003cp\u003eWith 6 patches covering Ra 0.2–6.4 µm (8–250 µin), roughness grades N4–N9, the Rubert 128 gives a workshop reference for vertically ground surfaces. It is part of the Series 100 line, the heavy-duty comparators made for shop-floor use, and lets operators check a vertical grinding finish against reference roughness values. A lightweight Microsurf equivalent (328) is offered for office and design use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMachining method: Vertical Grinding\u003c\/li\u003e\n\u003cli\u003eNumber of patches: 6\u003c\/li\u003e\n\u003cli\u003eRa 0.2–6.4 µm \/ 8–250 µin\u003c\/li\u003e\n\u003cli\u003eRoughness grades N4–N9\u003c\/li\u003e\n\u003cli\u003eHeavy-duty Series 100 construction for workshop use\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rubert","offers":[{"title":"Default Title","offer_id":67656289648753,"sku":"128","price":0.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/3930\/0977\/files\/100-series-comparators_6f27f479-4437-4115-aaec-070684494048.jpg?v=1791811454","url":"https:\/\/www.generaltechshop.ae\/products\/rubert-128-series-100-roughness-comparator-vertical-grinding-ra-0-2-6-4-m-n4-n9-6-patches","provider":"General Tech Services LLC","version":"1.0","type":"link"}