Today I went scouring the steel supply area in my city. Oceans of 1/8" CRS sheet. Mountains of HRS 1/4" and more. No 1/4" CRS with adecuate dimensions. Actually I found a 3ft x 3ft plate of CRS but it was quite warped. A major bummer.
After a whole day of walking I decided to buy several pieces of CRS of
2.5" width, just in case the stuff goes scarce. Would these be adecuate for the ways of the shaper and the milling machine?OTOH, I found that I can get a piece of O1 tool steel 5/16"x3"x24" for about $28. I suppose it comes ground "flat". Can it be drilled with carbide tipped masonry bits or do I need cobalt?. Also inquired about S type steels, but it seems they cut the stuff from large blocks, so it could be a bear to scrape. Will be buying tomorrow before prices climb more. Any thoughts?
Regards,
Mongke