Thread tap extension required. Do they exist?
Turbo Mini Forums

Guys, I'm after a thread tap extension to tap some M8x1 threads for the undrcrown cooling jets.

Being quite deep in the block I can't even get the little chuck type tapping handle on and rotate it enough to start the thread off.

I've looked for a long shank M8x1 tap but can't find one.

Is there an extension available anywhere? A chuck on one end with a long shank and a square drive at the top to put a tapping handle on would be ideal but I can't find anything like that online.

Any help would be appreciated

If you have an appropriate sized socket, wedge it in there and give it a whirl. or another, if you're feeling brave and skilled in the tapping ways, put the tap in a drill chuck and you'll be done in no time.

Just remember removing a snapped tap is not going to be fun

David.

how about this?

https://www.ebay.co.uk/i/292171176217?chn=p...74960578&crdt=0

Edited by Joe C on 28th Jan, 2018.

Perfect Joe, that's just the job, thanks

If it is just a one off job I weld an extension on to the tap

youll find a 12 sided socket will fit if you have a good socket set that doesnt skip sizes. I use this method when my 3/8ths drive tap chuck is too bulky to fit in somewhere.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

I've done as Denis in the past (as 12 divides by 4) but 4 sided sockets especially for taps do exist,
http://www.paddockspares.com/tap-socket-se...BSABEgKT6vD_BwE
specifically sized for the standard range of squares on taps.

Schrödinger's cat - so which one am I ???

I used a piece or round bar with a hole in one end to insert the tap into, a grub screw positioned to locate on the square “Drive” of the tap. Worked a treat, I did try to post a picture but failed miserably.
Shane.

Hopefully there is now an image and it helps?

Shane

Edited by shane on 11th Feb, 2018.