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Home / Tools / Countersinks /Avery #40 X 3/8 Csnk Cutter
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Avery #40 X 3/8 Csnk Cutter

13 Reviews 3 Answered Questions
$14.50/Each
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Part# 12-00879
MFR Model# 1051
Pilot SizeDecimal
Equiv.
(in.)		Body
Dia.
(in.)		Part No.
#40 (3/32" rivet).09803/812-00879

Overview

• Made in the U.S.A.
• High Speed Steel
• 1/4" -28 Threaded Shanks
• 100° 3-Flute Precision Ground
• For Use in Micro-Stop Countersink Units
   
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
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Reviews

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Very good quality, fits the cage perfectly

J R Verified Purchase

Avery #40 X 3/8 Csnk Cutter
May 7, 2023

Excellent product

Rick S Verified Purchase

Avery #40 X 3/8 Csnk Cutter
February 11, 2023

cant wait to use them!!

Doug T Verified Purchase

Avery #40 X 3/8 Csnk Cutter
June 28, 2022

Exactly what I ordered, turned up well packed and in good order, thank you.

Neil W Verified Purchase

Avery #40 X 3/8 Csnk Cutter
August 28, 2021

Works very well.

Dana K
March 21, 2020

Great tool, sharp and great delivery service!

Sean J
March 16, 2020

A Great AMERICAN Company doing things Organized and Correctly with Heart...., Many Thanks, You are AMERICAN Aviations best Resource.. Do Not sell out................... Pete Peek

William F
November 3, 2019

Countersinks 2024-T3 as perfect as Jims hair and as pretty as his million dollar smile. Both are are #40 pilots and get five stars. Coincidence? I think not.

Josiah D
October 17, 2019

tools work like a charm

Maurice
January 25, 2018

Works perfect.

Dan
January 20, 2018

Q&A

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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.

Q: Do both 3/8" and 1/2" inch diameter counter sinks fit in the micro-stop?

Per the supplier: Yes, 12-00879 would be the correct size cutter for 3/8" and 1/2".

Q: Can I use these Micro-Stop countersinks with 4130 steel?

Per the supplier: yes, it can work on 4130 steel, but it will wear out the cutter a bit more than what it is designed for (aluminum). We also suggest to use some type of lubricant for the 4130.

Q: How do these products work with lexan?

These are designed for aluminum. They might work with lexan but we recommend trying it on scrap first to may sure.

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