Moh’s Hardness Testing Pencil 3-9

Moh’s Hardness Testing Pencil 3-9
Moh’s Hardness Testing PencilsSet of hardness testing pencils: 3-9. Mineral embedded ina brass holder with wooden handle. Supplied in a boxedset with notes.
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  • Product Code: E31-14
  • Availability: In Stock
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