Aircraft Spruce Canada
Brantford, ON Canada
Corona, CA | Peachtree City, GA
Chicago, IL | Wasilla, AK
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Economy Countersink #27 X 3/8
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| Size | Decimal Equiv. (in.) | Body Dia. (in.) | PN |
|---|---|---|---|
| #27 (#6 screw) | .14440 | 3/8 | 12-03253 |
Overview
|
Economy High Speed Steel 3/8" and 1/2" dia in 8 different sizes • High Speed Steel • 1/4" -28 Threaded Shanks • 100° 3-Flute Precision Ground • For Use in Micro-Stop Countersink Units |
Reviews
Verified Purchase
Economy Countersink #27 X 3/8
Used on 2024 and carbon plate. Worked fine
Verified Purchase
Economy Countersink #27 X 3/8
Used in conjunction with mirco-stop to countersink for rivets and tinnerman countersunk washers in fiberglass panels. Worked perfectly.
Good quality tool. You have to use it carefully, however, the middle piece can break and fall out if you move it left and right while using it. Little side movements are OK though.
Tends to load up with shavings and causes irregular beveled surface.
Because the base of the pilot has the sharp triangle cutout as seen in photo, only use this cutter in thick enough material to support the smooth surface of pilot, even at full depth, otherwise the thru hole will wallow out
Q&A
Please note, Aircraft Spruce Canada'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 Canada 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.
