COYEUX 4 Pack Hardness Test Kit, Double-ended Scratch Tester Pens With Storage Box, Mohs Scale 2–9 For Mineral Jade Gemstone Glass Tile Testing
COYEUX
【2-9 Dual Tip Test Pens】4 dual-ended pens cover Mohs 2-3,4-5,6-7,8-9. Each tester pen measures 155mm, delivers accurate hardness grading for field geologists and rock collectors. 【Stainless Steel Test Body】Thin plastic testers bend and wear out quickly; every stylus adopts solid 304 stainless steel structure. Resists scratch and corrosion during frequent jade, tile and glass hardness inspection for long-term daily use. 【Ergonomic Hand Grip】Multi-faceted molded grip boosts holding stability. Less hand strain during long hours of gemstone appraisal and industrial surface detection work. 【Full Matching Reference Accessories】The storage case contains grindstone, magnet strip plus aluminum, brass and glass standard plates. Supports precise comparison for amateur and professional mineral testers. 【Multi-Scenario Hardness Detection Tool】One single kit meets different hardness measuring demands; works for minerals, jade, ceramic tiles, phone screens. Portable for field surveyors, jewelers, geology students and rock hobbyists.
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