Depending on the quantity you require I would say consider getting
If you want to stay local the I understand CAM Engineering in Trowbridge
do water jet cutting but no idea of their prices. I have heard of some
cheaper places for laser cutting in Bristol but don't have any names at
If you need enough to use 500mm of stock, item 252633149437 on ebay.co.uk is
316 stainless round bar with a suitable diameter.
you'd want to turn the OD down, bore the ID, then part off the washers as you
If cutting from plate on the mill, you could do worse than getting a couple of
hole saws of appropriate diameters and cutting the ID, followed by boring to
size, then cutting the OD and turning that to size after mounting the washer
on the outside of a 3-jaw chuck on the lathe.
If going down that route, drill a couple of holes hanging out to the scrap
side of each hole saw's path. That gives the chips a chance to clear
themselves from the saw and makes it cut properly.
You can grind a trepanning tool for a boring head. Start with a round blank,
remove half the diameter so the cutting width is on the diameter. Grind a bit
of relief on the bottom and off you go. Mounting a bit of 1/8" round HSS in a
1/2" round carrier can be better than doing it all with a 1/2" round HSS
Tried that, with medium-grade holesaws, bimetalHSS. No go, they got blunt.
Expensive bimetals, very noisy, need hearing protection. Maybe I'm doing
something wrong ...
Any recommendations for holesaws for stainless?
Trying that now, using the 1/8 shank of a broken carbide drill in a
purpose-made holder. It makes a round groove, of sorts ..
-- Peter F
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