DIN 1/16 punch
DIN 1/16 punches (shown in picture) are available for punching holes in the enclosure for the PID controllers and timer, but expect to pay an arm and leg for them. Better models typically cost over $500 which works out to $125 per hole! At that price we'd rather just use a little more elbow grease to get the job done, or better yet, purchase the enclosure pre-punched.
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