Gold Finger Fit Shank – Double 4x4mm

The 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 shank sections soldered together. This design simplifies installation on larger-diameter rings and provides a stable, reinforced base. Available in 14K Yellow Gold, 14K White Gold, and 18K Yellow Gold, and in two closed-size ranges to accommodate a wide range of finger sizes.

Features

• Expandable hinged design opens to pass over the knuckle, then closes and locks — no key or pin required to operate
• Cover catches provide a guaranteed, secure close with no tension mechanisms that can loosen over time
• Guide wire bridges the gap when the shank is open, adding an extra layer of security so the ring cannot fall off or fly open unexpectedly
• Guaranteed to open 3 sizes, providing sufficient clearance for larger knuckles
• Die-struck and CNC machined for precision fit and greater strength than a cast shank
• Heat and solder compatible — can be worked without damaging any components
• All components are individually replaceable, extending the working life of the shank
• Tested and proven in over 5,000 retail jewelry and trade shop environments
• Attaches to an existing ring — no need to redesign or create a new mounting

Specifications

Available Options