The Home Machinist!

A sawsall is a good tool to cut roots

I can not read the dimension but this is the way I'll do it. If the plugs are worth saving instead of shredding into chips... Let's say a 3/8 drill is a reasonable compromise between too many holes ant to much metal removal. Advancing the dials an easy 0.400 each hole leaves 0.025. Possibly too narr...

The machine size is given as 210 x 400 which is same size as an 8x16 As a point of reference I have a 9x20, the motor has a 1/2" shaft There is no way a belt or a ball bearing slip clutch can transfer enough torque to break a 10mm shaft, unless there was a defect or it was threaded with a 6mm screw....

Reducing the drive pulley diameter give more torque to the lathe spindle but does not increase the torque on the motor shaft. Actually if the spindle load is the same the motor needs to put out a lower torque.
Change the motor if you like but do not blame the broken shaft on the pulley reduction.

Gina, since you declared to be a beginner it may not be offensive to tell you that the type of chuck pictured usually has two sets of swappable jaws and if you have the second set they may grip a 7" piece.

Telling such obvious thing to an expert would be offensive.

John, good point. However I would not reach that point even when holding the bit with a "handle". Still have to lift, turn and look how the facet progress. If it gets to a blue color I will not dip it.

So I cut new ones from a chunk of SS rod, 12mm threads.

Wife buys one of those toilet seat 4" riser. Had to make special SS stud. I love my lathe!

That contraption, by the way, was replaced by ... I am ashamed to confess by a Sybarite luxury TOTO washlet.

I bought Tweerman and it works if the splinter sticks out enough to grab.
Usually by the time it starts to bother they are buried.
Will try the razor with tight sphincters.

89/42 x 12 = 25.428... an approximation within 0.11% Good enough for a short thread and loose fit.

My way
Either I dip it in water often, when is uncomfortably hot to hold, in that case the shock is not likely to generate microcracks.
OR if I have a lot to grind I put the bit in a holder (I have one for each size) and grind away, counting on the fact that HSS will not anneal even at red heat.

I also saw a reference to using it on SS fasteners on a still on a "Homebrew" website, but alas, my work computer forbid access to an website about alcohol! I was looking for "Essex", a renown wires and cables company, and the company internet policy reminded me that it was an inappropriate use of ...

Not to beat a dead horse but my only 2 experiences with Fastenal never brought me back.
They do not like to do business with you and in case you did not get the message they repeat it with the pricing.
Same story for Grainger.