From the Loftsmith community

Regulator key-pipe

A little tapered pipe for the end of a regulator key, the sort of thing that sits on a clock-style or reed project. The base has three ridged rings that push into a socket, and a small hole runs through the top. Change the socket size and the tenon clearance to fit your own socket.

1 part · 5 g · 18 × 18 × 70 mm