2UUL BH21 Glass OX Jig Universal PCB Holder

The 2UUL BH21 Glass OX jig is a universal phone board holder in 2UUL's OX range, sold to keep a board steady during repair.

The listing's description is copied from the BH01 OX jig, so it only tells us the general idea: adjustable clamps on a base that takes boards from various phones. It gives no dimensions, clamp range or material, and doesn't explain the "Glass" name, so check the photos before ordering.

Jobs a board holder covers

• A board that keeps shifting while you remove a damaged connector.

• Shorted components you are hunting with a thermal camera.

• Liquid corrosion you are cleaning under the microscope.

• A board with lifted pads that needs both hands free.

Practical setup

Clamp the board by its bare edges, never on shields or chips. Position the holder under the microscope before applying heat, and let the board cool before unclamping, since a hot board flexes easily.

If you just need a standard universal holder, the BH01 OX is the documented one; the BH21 suits buyers who already know this model from 2UUL.