Heli Coil

[MrJimi]

You can get any drill bit at use-enco.com and great quality

 

[Wayne County Hose]

Thanks. How can I order a bit from you?

I don't sell drill bits.

Also, I wasn't even thinking about the size, I don't know if you can get a bit above 1/2" stepped down to 3/8". You are probably going to need a drill with a 1/2" chuck. Or, you could change the chuck in your drill to 1/2".

 

[SPYDERLK]

I thinking about using a 1/2" x 13T heli coil to repair threads on my tiller gearbox mounting bracket. Has anyone used the heli coil products and how do they stand up to vibration?

Better:

++TIME-SERT Threaded inserts for stripped threads, threaded inserts, thread repair , stripped sparkplug's, Ford sparkplug blowouts, threaded inserts threaded, repair stripped threads, stripped threads, inserts threaded inserts, Ford spark plug repair, Blownout spark plugs, fulltorque, blownout sparkplugs, thread repair system, threads repair system, helicoil, thread repair, thread repair system.

 

[MrJimi]

A 1/2 inch drill can be bought at Harbor Freight pretty cheap and it will come in handy many times in the future and here is your 17/32 bit click here for bit

 

[Bird]

That's pretty close to the same price as Northern Tool on a 17/32 bit with half inch shank.

 

[MrJimi]

That's pretty close to the same price as Northern Tool on a 17/32 bit with half inch shank.

Very true but at enco, you get a set of five

 

[3RRL]

Those S & D drill bits all have 1/2 shanks on them.
You can get them and turn the shank down to 3/8" on a lathe or grind it down on a surface grinder. Maybe a shop can do that for you. Perhaps you can get them to cut 3 equally spaced flats on the shank?
All you need is about 1" long of 3/8" shank to hold on to.

 

[workinallthetime]

Like spiderlk said TIME SERT is the way to go, every gm dealer has a instock selection of them, and we have all been to class on how to use them correctly belive it or not. great product !!!! cant tell you how many northstar engines have been saved with those babies

 

[Danno1]

Hiya,

I used them all the time for head bolts in aluminum small block Chevys, they work great. Follow the instructions and you'll be fine. You do have the correct tap and installer right?

I used Loc-tite 271 instead of the regular blue 241 thread locker. I didn't care about getting them out, the motors wouldn't last that long without something poking through the side....

Tom

Don't ever use Loctite w a Helicoil if there's even a remote chance you might need to get it out. If vibration is an issue then buy the locking Helicoil instead of the standard version. # 3585 series as opposed to the 1185 series.

.

 

[Rockin' G Ranch]

Thanks for the help, guys. I have looked at the Time Serts and think they will be better than Heli Coils. I will also buy a 1/2" drill. I didn't realize 3/8" shanks were only offered for 1/2" and smaller drill bits - I guess that's why I couldn't find one.