Aircraft Spruce & Specialty Co.
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Instrument Mounting Hole Drill Jig
MFR Model# FAP 06
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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. |
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.
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.
Q&A
Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.
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.
Yes, this is for both standard instrument sizes, 2-1/4 and 3-1/8.
