Two 10-32 by .375 machine screws, two number ten finishing washers, a number 21 drill bit, a 10-32 tap and some tap magic juice...
And an Inline Fabrication 7/8” die rack:
And an Inline Fabrication 7/8” die rack:

Piggyback 7/8ths die rack for the Ultramount - Inline Fabrication
The Piggyback Die Rack mounts to the 2 accessory holes (no drilling required) in the back of your Ultramount and...
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