This compass-like tool can be set to an exact measurement and allow that measurement to be transferred to multiple different surfaces and materials.
Scribe (Double-Ended Twist)
This tempered steel tool will leave a thin line for precise cutting in sheet metal. It can also be used to inscribe hard carving wax before casting.
Center Punch
This tool is used to dimple sheet metal before drilling. It can also, through repeated tapping, create a dimpled texture.
Quality Mark Stamp
Used to stamp the metal purity of gold, silver, platinum, and palladium. According to the U.S. National Gold and Silver Stamping Act, a metal purity stamp must be accompanied by a registered maker’s mark. Click here to learn more.
Inside Ring Stamp
This curved stamp notches over the back of the ring shank to stamp the inside of the shank with metal identification marks. These identifiers are called “hallmarks,” based on European systems requiring all precious-metal items above a certain weight to be tested and stamped with quality marks and maker’s marks. The term dates back to medieval times.
Brass Slide Gauge
This inexpensive offset measuring tool provides quick, accurate measurements. It can also be used as a machinist square to check straight edges.
Degree Gauge (aka Leverage Gauge)
Used to measure faceted gemstones to within one-tenth of a millimeter, this tool is also useful in checking the thicknesses of printed or carved waxes.
Digital Calipers
While these can be a very expensive option for measuring, they are also extremely accurate. Some versions offer additional options to measure depth and the inside diameter of jump rings, while toggling between imperial and metric systems.
Standard Sheet-and-Wire Gauge
Hearkening back to the mid-1800s, this measuring tool features slotted openings of different sizes around the circumference (and, for extremely thin items, in six of the flat tabs). Jewelers can insert the wire or sheet into the slots to find the best fit to determine its gauge. Often one side will have the U.S. gauge markings, while the other side will have the metric measurements.
Finger Gauge Set
This is a standard “wedding band” ring-sizing gauge. Rings are in full and half sizes on this hoop, allowing clients to try on different sizes to find the best fit. The ring should glide on easily and must be wiggled a bit to remove.
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A Fresh Look. A New Website. A Stronger Membership.
We’re excited to unveil Jewelers of America’s refreshed brand and redesigned website, reflecting our growing community and continued commitment to the jewelry industry.
With JA and MJSA now united under one membership, we’re bringing together more resources, expertise and connections to support every facet of the jewelry industry.
Take a look around to see all that JA offers — members can login to access member-only content like benefits, the Knowledge Vault and Advocacy resources.
Questions? Contact us at members@jewelers.org or call/text (800) 223-0673.
