Change in Worldwide Shipping Policy

Due to a recent increase in the number of lost or undelivered packages by USPS and their worldwide partners, we have decided to discontinue shipments to countries not on the following list. If your country is not on this list and you place an online order. That order will be refunded in full, but no shipment will be made. Thank you for understanding.

We will accept orders from: United States of America, Canada, Australia, Austria, Belgium, Denmark, France, Germany, Greece, Greenland, Iceland, Ireland, Israel, Italy, Netherlands, New Zealand, Norway, Poland, Puerto Rico, Sweden, Switzerland, United Kingdom, Virgin Islands (British)

News on Investment Cast Products

As some of you are aware, we have been working to get a new 3D printer online to print investment casting patterns for many of our specialty coupler types. As this work has progressed, the old printer finally bit the dust. This is why you currently see some of those coupler styles listed as out of stock. We do anticipate having the new printer working soon and those coupler styles will come back once that happens.

Sergent Engineering at

Thanks to John Niemeyer for starting an email group for discussions regarding assembly, installation, and use of Sergent Engineering couplers! This group is a great resource to those who use (or are thinking of using) Sergent couplers. Join the group and get in on the fun! John has recently moved this group from Yahoo to based on the overwhelming preference expressed by the membership. Click here for the group page.