Manufactured in the USA and built to last a lifetime. Stoppers are constructed from FDA-compliant 304 Stainless Steel and feature three FDA compliant O-rings so cross-contamination will not be an issue. Stoppers are designed to fit multiple bottle diameters, providing an airtight seal. Stoppers feature a 3/8" x 16 TPI, 1/2"-long, non-removable threaded post for a secure fit to the turned handle.

Use of the Knurled Brass Threaded Inserts (#167430), a 1/2" brad-point drill bit, and one of the two direct-thread Universal Mandrels with a 13/16" Bushing creates the best bottle stopper turning systems. Universal Mandrels are available with a 1" x 8 TPI (#167431) or a 1-1/4" x 8 TPI (#167432). All items listed above are sold separately.