"jim rozen" wrote in message
...
In article .com,
gtslabs
says...

... What is needed to
get the square slot?

Another approach is to not use the keyway on the existing
shaft. You could:

Cross drill for a taper pin, or

Machine the shaft and handle for a 'dutchman' which
is a round key. The idea is you assemble the shaft
to the hub, and drill the face of the assembly,
centered at the parting line between the two. A
tight fitting round pin is then driven into the
hole.


Here in Auz,they usually call that a "Scotch key".They tap the hole and put
a grub screw into it so that it can be removed if necessary