I have read that HSS endmills were once sharper than carbide, but my experience suggests that quality carbide endmills are plenty sharp enough for chiploads significantly smaller than 0.001". They can also provide less tare-out, smoother cuts, and easier chip/dust extraction. The OP should “try it, he might like it”, hopefully he’ll let us know how it works out. I’m glad we’re not talking about needing bigger chips to “carry away heat” anymore! Power woodworking tools “make sawdust, not shavings/chips”.
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