Gold Finger Fit Shank – Double 4x4mm Presidium The powder-coated heavy-gauge steel body

The powder-coated heavy-gauge steel body keeps it durable and shop-ready

Standard aluminum mold frames designed to fit the pre-cut size of Castaldo brand mold rubbers

simply peel it away to reveal a fresh abrasive surface beneath — extending the usable life of every stick across multiple sessions

forming tasks

Ideal for burnishing with steel shot and detergent

Gold Finger Fit Shank – Double 4x4mm Presidium The powder-coated heavy-gauge steel bodyThe Finger Fit Double Shank is an expandable, hinged ring shank designed to solve one of the most common fitting challenges in jewelry retail: rings that fit the knuckle but are loose on the finger, or rings that cannot pass over an enlarged knuckle. The shank opens, allowing the ring to pass over the knuckle, then closes and locks securely for a comfortable, snug fit. This is the double shank configuration, constructed from two identical 2mm 2mm