Gold & Platinum Finger Fit Expandable Ring Shank 3x3mm Metal Types:Platinum 546 – Inverted Cone Bur

546 – Inverted Cone Bur

Includes three hallmark stamps: 10K

2-Groove design recommended for hard materials like steel

and flexible cutting discs engineered for precision work in professional jewelry and metalsmithing applications

Trusted extensively in antique restoration and museum curation

Gold & Platinum Finger Fit Expandable Ring Shank 3x3mm Metal Types:Platinum 546 – Inverted Cone BurThe Finger Fit is an expandable, hinged ring shank designed to solve one of the most common fitting challenges in jewelry: rings that fit over the knuckle but are too loose on the finger. The shank opens, allows the ring to pass over the knuckle, then closes and locks for a comfortable, secure fit no resizing required. These Finger Fit shanks measure 3mm x 3mm in shank diameter and are available in 14K Yellow Gold, 14K White Gold, 18K Yellow Gold, and