Brunson Rotating Mounting Base kara-kit-recommended remove the hex bolt and

remove the hex bolt and install the adapter:

The 5146 adapter provides a standard 3½"-8 external thread for mounting various bases or other adapters

5THDN Drift Nest—often referred to as a "hockey puck"—is a temporary

Built from corrosion-resistant stainless steel

either at the top for adjustable height up to 13 feet or at the bottom for shaft access

Brunson Rotating Mounting Base kara-kit-recommended remove the hex bolt andThe model 89 is a precision mounting base designed to accommodate almost all of our 2 diameter alignment telescopes and collimators. The instrument is supported by two wyes which are 8. 375 (212. 7mm) on center, and are mounted to a channel sectioned bar. (Special wye spacings are available on request.) The wyes provide stable support of the instrument barrel. For added protection, adjustable metal clips secure the telescope to the base. Precise