[APML] Pentax 67 accessory hole purge port

["Bobby Middleton" <bobm@koyote.com>]

This is a pretty thick piece of aluminum. I've drilled at least 1/4" and I'm
still not through it. Is this what you guys have seen when drilling a purge
port into the accessory hole of the Pentax 67?
Bobby Middleton


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