Make Sense Tap Adapters
Make Sense Tap Adapters from Eliot Inc. (Joice, IA) are available to fit all common fractional taps up to 3/4-inch and 22 millimeters. Each set includes 11 adapters and comes with a rugged aluminum stand, set screws, and an Allen wrench. This product is fully CNC-machined from 4140 heat treated steel and comes with a lifetime warranty.
Check it out at www.eliotinc.com [1].