View Full Version : Grinder Arbor - 1/2" L/H Thread

10-27-2009, 04:22 PM
Anyone aware of a Canadian outlet where I can purchase a grinder arbor with the following specifics.

1/2" L/H thread approximately 4" in length to fit 1/2" grinder shaft.

Perhaps some one has a surplus item in there spare gear.

Bill in Moose Jaw

10-27-2009, 08:02 PM
make one . That is what the lathe is far. 30 minutes should do it. are less.

10-27-2009, 08:51 PM
Lane wrote 'make one' however not as easy as it sounds. Firstly I am a pure novice with my lathe recently purchased in August. Secondly I have no experence turning thread. Lastly I cannot reverse the leadscrew on my lathe. Refer to this thread on the topic.


Perhaps I could run the motor in reverse then turn my tool upside down. That way the leadscrew works. Somehow this doesn't sound like safe practice.

10-28-2009, 04:19 AM
That won't do it, the thread will still be RH for LH only one of leadscrew/spindle must be reversed. It will however let you cut a thread from the bottom of a hole or close to a shoulder, without risking a crash.

10-28-2009, 09:34 AM
Hi. This company might be able to supply the corect rod but you will have to attach it to the system you have. http://www.threadall.com/

I rebuilt an arbour for a buffing system but used the lathe to cut the LH thread. Another alternative is to purchase a LH die from KBC - say 1/2"-20 and have a go that way.


10-28-2009, 10:38 AM
I think I got mine at Princess Auto. I looked online, but, with their new site I can't find anything.:confused: :mad:

Also, try Lee Valley Tools.