This pinion holder holds 18pcs of pinions combine with solder helper.
The solder helper is friend of EP racer which help them to hold all
kinds of popular banana tubes 2.0mm 2.6mm, 3.0mm 3.5mm, 3.6mm, 4mm,
4.3mm, 5mm. And the clamp type holder which is able to hold T-Plug and
speed controller securely, just works like your third hand. Also there
is wire slops where you can place a wire in there for tinning.

Sample: