what tap size do i need for a 1/4-20 helicoil?

[PurplePinzeR]

I have a stripped hole that i want to put a helicoil in to fix the thread. The package tells me to:
1.drill out the old thread with a drill bit.
2. Tap the hole
3. insert 1/4-20 helicoil

The only thing is I dont know what tap size to use cause it doesnt tell me. Nor does it tell me what size drill bit. If someone could help me out with some numbers i would be very grateful.

[Muzikman]

I did not specifically look for 1/4-20 insert, but the info should be in here.

http://www.helicoil.in/pdf/HeliCoil%20Catalogue.pdf

Did you just buy the inserts not the kit? The kit usually comes with the tap, inserts and insert tool. It will also tell you right on the tube of inserts what size tap and what size bit.

[hyperbuzzin]

It's not a normal tap. It takes a 1/4-20 STI (standard thread insert) tap to thread the hole for a helicoil

[hyperbuzzin]

Im a maybe... Gotta see what my keeper has planed for me.

We been SPAMMED!!!!

[ZJ_5.2LIMITED]

i was gonna say that about half hour ago, but i thought it was a joke that i wasnt in on bahahaha.. they did it 9 times. they all say the same thing.