Connection Test Implements

These are well-known, but I don't think I've posted about them here yet :) These are used for quality-testing other Lego parts, and each one has a different standard connection type.

 

BrickArchitect has much more info on these:

brickarchitect.com/2021/lego-clutch-test-implements-bricks/

 

I'm still missing a couple, please let me know if you have any I don't and are willing to trade or sell :)

Done