Cable tach by Reliance
Face is a bit over 3 5/8"
Mounting circle is close to 5"
Rear ( mounting hole ) circle is a bit over 3 5/8"
Depth is around 2 1/4"
Used a rubber hose and drill motor to spin
Only went up to 5300
I heard no noise and my drill motor is not real loud
The glass has faint scratches but hard to notice holding a couple of feet away
The chrome has scratching as well
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$30.00 plus shipping
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