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INSTRUMENT MOUNTING HOLE DRILL JIG

$38.75/Each
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Part# 12-00975
MFR Model# FAP 06

Overview

Aircraft instrument mounting hole drill jig for standard 2-1/4 & 3-1/8 diameter instruments. Accurate and simple tool to use, drill jig made of hardened steel for long life.
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Reviews

Easy to use. I used the template to increase the instrument hole from 2 inch to 3-1/8 without issue on experimental aircraft.

Kevin F
July 3, 2015

Template was easy to use, drawback is the .177 drill guide holes are larger than 6/32 screw size forcing you to drill oversize 8/32 for some instruments. With The center screw tightened you can still move the template on thinner panels so you need to be careful not to move anything. Extending the arms of the clamp bar another 1/8 each side would allow it to clear the 3 1/8 circle template and clamp on thinner panels. A countersunk center screw would allow the panel to still sit flat on the bench while drilling.

Charlie G
June 3, 2015

Q&A

Q: Will this tool cut thru 1/8 alum?

The drill jig is a alignment tool it locates the hole to be drilled only. A drill will cut the hole and yes a drill will easily cut through 1/8 aluminum.

Q: Is this instrument drill jig for both gauge sizes?

Yes, this is for both standard instrument sizes, 2-1/4 and 3-1/8.

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