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This large size natural test stone is used with test acids and test needles to determine the karat value of products. It's ideal for gold testing. This stone offers value and convenience.

Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It is been used for years to make the sharpest knives. Obsidian test stones, on the contrary to rougher test stones, have a perfectly smooth surface that provides more consistent and reliable readings.

2x3x0.25" Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It is been used for years to make the sharpest knives. Obsidian test stones, on the contrary to rougher test stones, have a perfectly smooth surface that provides more consistent and reliable readings.

Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It is been used for years to make the sharpest knives. Obsidian test stones, on the contrary to rougher test stones, have a perfectly smooth surface that provides more consistent and reliable readings.

Natural obsidian test stones give precise readings when testing for gold purity. Obsidian is a volcanic glass produced when lava becomes cold. It is been used for years to make the sharpest knives. Obsidian test stones, on the contrary to rougher test stones, have a perfectly smooth surface that provides more consistent and reliable readings.

Light blue hand-held blower for removing dust from coins and holders.

Economy Dust Blower With Valve

Lightweight cotton gloves. 6 pairs per bag/or 12 individual gloves.

Lightweight cotton gloves. 6 pairs per bag/or 12 individual gloves.

Lightweight cotton gloves. 6 pairs per bag/or 12 individual gloves.

Thick coating on tips holds items securely.

Plastic 5" length tweezer tongs for handling coins and stamps.

Place coins or jewelry in mesh, stainless steel basket to avoid direct contact.

Plastic strainers with nylon mesh. Will not scratch coins or jewelry and is perfect for dipping.

Plastic strainers with nylon mesh. Will not scratch coins or jewelry and is perfect for dipping.

Non-scratch holder for holding items during cleaning.

Handy, lightweight millimeter pocket gauge from Switzerland made of high impact nylon. Measures up to 75 mm. Use for coin sizing, diamonds, etc.

Our stainless steel 6 3/4 miniature digital gauge is state-of-the-art. Beautifully finished it is practical and compact. It measures in millimeters and inches, maximum 100mm. Accuracy is assured at 0.01mm. Powered by a single 1.5 volt cell and protected in a high density plastic foam lined case.

This 9 1/4" digital caliper comes standard with a stone holding plate attachment for easy measuring of loose stones watch crystals beads etc. With the touch of a button you can convert measurements from millimeters to inches and back. Accuracy to .01mm. The measuring system is a non-contact linear CAP with LCD display and an auto-off system to save the battery. Caliper will measure inside outside or depth and features a fine adjustment thumb wheel and zero set button. Comes in a protective...

7 1/2 inch by 1 1/4 inch 50# bleached white kraft paper with self-sealing adhesive straps. 1000 per box. Conform to Fed Res. Bank requirements.