{"product_id":"pro-grade-2-9-hardness-scratch-tester-pen-kit-4-pa","title":"Pro Grade 2-9 Hardness Scratch Tester Pen Kit, 4-Pack Stainless Steel Pens With Storage Box For Mineral, Jewelry, Jade, Glass, Gemstone And Tile Identification","description":"\u003cdiv\u003e4-Pen Hardness Scratch Tester Kit for Gemstones and Glass\u003cbr\u003e\n✔️ 4 stainless steel pens (155mm) with a magnetized grindstone plate box \u003cp\u003eThis four pack hardness scratch tester kit includes stainless steel pens (155mm long) with a compact storage box. Each end carries a different hardness scale: 2\u0026amp;3, 4\u0026amp;5, 6\u0026amp;7, 8\u0026amp;9, for identifying minerals, gemstones, glass and ceramic tiles. The box features a grindstone striped plate magnet and works with aluminum, brass and glass plates for testing hardness in labs, studios or field work. Color: One Color.\u003c\/p\u003e \u003cp\u003e✅ 4 pens, dual end hardness scales 2\u0026amp;3, 4\u0026amp;5, 6\u0026amp;7, 8\u0026amp;9 \u003cbr\u003e✅ Stainless steel construction for durability and precise markings \u003cbr\u003e✅ Includes a magnetized grindstone plate in the box for testing \u003cbr\u003e✅ Works with aluminum, brass and glass plates for cross-material testing \u003cbr\u003e✅ Compact 4 pack in one color for easy transport in labs and on site \u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a hardness scratch tester kit used for in material testing, and how can it improve results?\u003c\/p\u003e\n\u003cp\u003eHandy tool for quick on site hardness checks and lab confirmation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial identification across gemstones, glass, ceramic tiles, and minerals\u003c\/li\u003e\n\u003cli\u003eComparing results against standard hardness scales to gauge relative hardness\u003c\/li\u003e\n\u003cli\u003eDurable stainless steel design and portable kit for field or bench tests\u003c\/li\u003e\n\u003c\/ul\u003e ✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49138771132651,"sku":"VXB0GC4S81GP","price":345.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71kUNUc2dXL.jpg?v=1785669099","url":"https:\/\/vxb.com\/products\/pro-grade-2-9-hardness-scratch-tester-pen-kit-4-pa","provider":"VXB Bearings","version":"1.0","type":"link"}