Your def missing a knurled nut and set up is with the 15mm. Fine adjust with the 2mm. Could you be missing the set screws? You should be able to get by without them mind you.
@bellboy started
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Your def missing a knurled nut and set up is with the 15mm. Fine adjust with the 2mm. Could you be missing the set screws? You should be able to get by without them mind you.