Deluxe Hardness Pick Testing Kit
$107.80
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Details Picks are made of metals and alloys of hardness values equal to 2 through 9 on Mohs' hardness scale. And because the picks are made of metal, they are easily ground to sharp points which will not break off and which can be easily sharpened. Includes 8 points, 100 grit grinding stone, streak plate, magnet, and hardness chart for 300 minerals plus instructions.
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