14K, 18K & Platinum Round 4 Prong Double Gallery Positive Locking Guardian Post & Back Sets Komet Safety Note: Otto Frei strongly

Safety Note: Otto Frei strongly recommends using combination flashback arrestors and check valves between your regulators and hoses

Stainless steel mandrel: 110

Large-range taper covers 1-3/4" x 2-1/16" up to 2-1/2" x 3" (45 mm x 53 mm – 65 mm x 75 mm)

Pure sterling silver — no plating or surface treatments

Supra also offers these brushes in Medium and Stiff bristle grades

14K, 18K & Platinum Round 4 Prong Double Gallery Positive Locking Guardian Post & Back Sets Komet Safety Note: Otto Frei stronglyClassic round 4 prong double gallery earring mountings with Positive Locking Guardian posts and nuts for securely setting round faceted gemstones. A clean, balanced profile lets the stone take center stage. Available in 14K yellow, 14K white, 18K yellow, 18K white, and platinum across a broad stone size range, these mountings are well suited for professional jewelry mounting and repair work. Features 4 prong double gallery construction designed for