I find the kitchen sink comes in handy when one needs a recess for one's wheel spindle when one wishes to fit the stainless disc
(what I purchased @ Fred Warrs Jumble many moons ago).
Fuck - my loverly stainless countersunk bolts one ordered are too long (5/16x1" the originals were 7/8" and I couldn't get that size).
Time to get my Dad's hobby vice out, still stoutly bolted to a bit of
Carefully measuring 7/8" with ones vernier gauge (purchased for two quid at Kempton) I scribed a mark with the old indelible freezer box pen.
The shed yielded another lost treasure still fitted with its diamond disc from the property development days, (sic).
So I fitted another purchase from Kempton for 99p,
a 2mm metal cutting disc.
Wedging an allen key against the bolt and vice to stop any movement one carefully cut 1/8th" orwff.
And Voilá le disc est fitted Chef!