Yes, you read it right — the Spot-Rite torpedo level has male pipe threads on both ends so you can screw it into a 1/2″, 3/4″ or 1″ pipe fitting to check level, plumb, and 45°.
So, how do you fit three different thread sizes on two ends? Since it’s hard to see in the picture, we’re assuming either one end has a stepped thread, or the level comes with a thread adapter.
Pricing for the Spot-Rite level starts at $22. Both the Summit and Allied sites say that this is a torpedo level and gunner nipple in one tool. Can anybody shed some light on what exactly a gunner nipple is?