|#12 (#10 screw)||.1890||1/2||12-00944|
• 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
Works very well.
Great tool, sharp and great delivery service!
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
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.
tools work like a charm
Very good USA made tool!!!
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.
Per the supplier: Yes, 12-00879 would be the correct size cutter for 3/8" and 1/2".
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.
These are designed for aluminum. They might work with lexan but we recommend trying it on scrap first to may sure.