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The Rock chuck comes in 2 styles, 1/4" or 1/2" and the CarveTight is 1/2". The rock also sits lower in the machine as it is added to the existing Z truck.

The #10 was .09, metric 0.10

M5x20 $0.70 M5 split washer $0.10 each 2 = $0.20

I went with the M5 washer vs the #10 ... guessing that is ok????

Connie,

Thanks for the update! Sounds very simple!