Presumably this one?https://www.ebay.co.uk/itm/315011671504

The blurb on the left includes this:

So, just a feature allowing the lock to be stuck to any nearby steel for storage.   The following page describes the strap hole top-right, making it clear you have to provide your own strap!

Dave

Is this intended as an alternate to the spindle lock that Myford built into the lathe?

Brian

Why would you stick it to your dial indicator stand as shown in the pic???

Greensands: I would think a conventional single point detent plunger would be more reliable and easier to use than a multi-tooth jobbie like this one?.

On 15 August 2024 at 11:44 Kiwi Bloke Said:

…or are they to ‘stick’ the plastic block to the bull gear?

Why would you want to do that?

The teeth in the plastic part engage with the teeth on the bull gear. When the item is used in that manner, there is only air where the magnets are (nothing to stick them to).

On 15 August 2024 at 15:13 bernard towers Said:

Surely the S7 has its own spindle lock

The early ones, like my old S7, did not. At sometime one was introduced. The only place I have heard of broken bull-wheels is this forum. I am sure it did happen otherwise why introduce a spindle lock.

I may be thick but I don’t understand this topic. What have magnets got to do with spindle locks? Magnetics appear to be offered as the universal cure to everything. Actually they are just a curse, slowly anything iron or steel in the workshop becomes magnetised.

JA

This version of the tool eliminates magnet angst by not having any!

Nothing complicated going on.  The magnets allow the tool to be stuck to a splashback or other metal surface when not in use.

Dave