Hi
A cheap set (well free if you ask at your local garage) of parallels are old car wheel bearings. The photo shows a rear wheel bearing, front bearings are bigger. The one shown measures 52mm diameter X 37mm high. The 2 centre races are each 18.5mm high. That makes them a perfect set of parallels and stood on top of each other they equal the height of the outer race. They are of course extremely hard. I have quite a collection of different sizes now and find them most useful when setting up and clamping material to the mill table.
Hope you find this tip useful.
Cheers
A cheap set (well free if you ask at your local garage) of parallels are old car wheel bearings. The photo shows a rear wheel bearing, front bearings are bigger. The one shown measures 52mm diameter X 37mm high. The 2 centre races are each 18.5mm high. That makes them a perfect set of parallels and stood on top of each other they equal the height of the outer race. They are of course extremely hard. I have quite a collection of different sizes now and find them most useful when setting up and clamping material to the mill table.
Hope you find this tip useful.
Cheers