Originally Posted by Bram

If you have to re-tap the threads then you may aswell look at doing a 2 piece bleeder like this in the picture. The actual bit you undo to drain fluid is screwed into the adapter. The adapter then screws into the caliper. That way any wear and tear and any siezing that happens, happens in the adapter, which you can then simply unscrew and throw away and get a new one. Its a better idea in my opinion, better than chewing up the actual caliper every time you have to bleed brakes. Or galling up the threads, or snapping the head off the bleeder.

They can also come in better metals than brass, like zinc plated steel / stainles steel etc.

My Willwoods are setup like that, and i quite like it. It seams to work well.