{"product_id":"rock-solid-200-by-150-by-50-mm-precision-granite-c","title":"Rock Solid 200 By 150 By 50 mm Precision Granite Comparator Base For Digital Indicators And Calibration, Ultra Flat Metrology Grade Granite Surface With Superior Stability, Long Lasting, High Accuracy","description":"\u003cdiv\u003eSingle-unit Granite Comparator Base 200x150x50mm Calibration\u003cbr\u003e\n✔️ Precision-ground DIN876-00, 0.003mm flatness, 3300 kg\/m³ \u003cp\u003eThis precision granite comparator base provides a stable reference surface for digital indicators and calibration setups. Built from natural black granite, it’s non-magnetic and ideal for metrology labs, QA benches, and instrument stations where flatness and long-term stability matter.\u003c\/p\u003e \u003cp\u003e✅ Material: black Impala granite; natural, non-magnetic \u003cbr\u003e\n✅ Size: 200 x 150 x 50 mm; compact yet stable \u003cbr\u003e\n✅ Flatness: top surface within 0.003 mm per DIN876-00 \u003cbr\u003e\n✅ Density \u0026amp; strength: 3300 kg\/m³; compressive 256-258 MPa; flexural 25.2 MPa \u003cbr\u003e\n✅ Hardness \u0026amp; absorption: Shore 78; water absorption 0.02% \u003cbr\u003e\n✅ Finish: deburred edges, rounded corners, chamfered surfaces \u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a high-precision granite comparator base typically used for in metrology and calibration?\u003c\/p\u003e\n\u003cp\u003eHandy base serves as a rock-solid reference surface for precision indicators and calibration fixtures.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLong-term stability reduces drift in dial indicators and digital readouts\u003c\/li\u003e\n\u003cli\u003eNon-magnetic and radiation-free surface prevents interference during tests\u003c\/li\u003e\n\u003cli\u003eDIN876-00 flatness ensures repeatable, accurate readings\u003c\/li\u003e\n\u003cli\u003ePerfect for calibration labs, QA benches, and manufacturing workstations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48156524413163,"sku":"VXB0DWZR8GHF","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61rhHit6Z-L_37031cf9-bc40-435b-a552-5bc87d1ca9fa.jpg?v=1777381082","url":"https:\/\/vxb.com\/products\/rock-solid-200-by-150-by-50-mm-precision-granite-c","provider":"VXB Bearings","version":"1.0","type":"link"}