Mohs Hardness Test Pen – 2-9 Scratch Tester with Storage Box, 304 Stainless Steel, for Concrete Coating and Mineral Testing

Mohs hardness pen is based on the hardness of 10 different minerals. Materials of different hardness are selected to simulate substitute minerals and made into a scratch pen that approximates minerals. It is used to test the Mohs hardness of various material surfaces. The hardness pen uses 304 Made of stainless steel, it uses a boxed storage box that can store various accessories in categories, keeping them neatly stored and easy to carry.When two minerals with different hardnesses scratch each other, they will leave scratches on the surface of the minerals with lower hardness.Specification:Product name: Mohs Hardness TesterMaterial: Stainless steelMeasuring range: 2-9 levelsHardness standard: 2&3, 4&5, 6&7, 8&9Product material: 304 stainless steelSize:230*185*47mmWeight: 500GProducts include:4×Hardness pen1×Storage boxPrecaution:1. Please allow 1-3cm (0.4-1.18in) difference due to manual measurement and slight color variation for different display setting.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

• 【Material】 Made of pure stainless steel. The set includes 4 hardness pens, each 155mm in length.
• 【Double Head Design】 Each hardness pen features writing needles with different hardness levels at both ends. The Mohs hardness scale pairs are: 2&3, 4&5, 6&7, and 8&9.
• 【Portable Design】 The hardness test kit features a multi-faceted shape designed for practical handling and extended use.
• 【Package Include】 The storage box includes a grindstone striped plate magnet, along with aluminum plates, brass plates, and glass plates of different hardness levels for mineral identification.
• 【Wide Application】 Suitable for ceramic tile, floor, glass, mobile phone screen, mineral, concrete, and more.