Drilling 304 Stainless Steel - Practical Machinist
Nov 09, 2009 · Drilling 304 Stainless Steel Hi everyone- We have been having serious problems drilling both 3/16" and 1/4" holes in 304 stainless using the following HSS, HSS TiN, Cobalt, Cobalt TiN, Cobalt TiCN, Cobalt TiALN drill bits in both sizes at a depth of 1" (effectively 5.3X and 4X) with speed/feed of 1018RPM/3IPM for the 3/16" for example.
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stainless steel pipe astm a554 201 304 price