{"product_id":"rubert-131-series-100-roughness-comparator-spark-erosion-edm-ra-0-425-0-m-n5n11-7-patches","title":"Rubert 131 | Series 100 Roughness Comparator – Spark Erosion (EDM) | Ra 0.4–25.0 µm, N5–N11, 7 Patches","description":"\u003cp\u003eWith 7 patches covering Ra 0.4–25.0 µm (16–1000 µin), roughness grades N5–N11, the Rubert 131 gives a workshop reference for spark-eroded (EDM) surfaces. It is part of the Series 100 line, the heavy-duty comparators made for shop-floor use, and lets operators check a spark-eroded finish against reference roughness values. A lightweight Microsurf equivalent (331) 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: Spark Erosion (EDM)\u003c\/li\u003e\n\u003cli\u003eNumber of patches: 7\u003c\/li\u003e\n\u003cli\u003eRa 0.4–25.0 µm \/ 16–1000 µin\u003c\/li\u003e\n\u003cli\u003eRoughness grades N5–N11\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":67656277459057,"sku":"131","price":0.0,"currency_code":"AED","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0625\/3930\/0977\/files\/100-series-comparators_c6d5b88d-95b8-48bc-bed7-91448f14c417.jpg?v=1791811124","url":"https:\/\/www.generaltechkuwait.com\/products\/rubert-131-series-100-roughness-comparator-spark-erosion-edm-ra-0-425-0-m-n5n11-7-patches","provider":"General Tech Services LLC","version":"1.0","type":"link"}