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User:Stever/boxford/speedsnfeeds: Difference between revisions
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== H-13 Tool Steel ==
===Roughing===
===Drilling===
6mm HSS Drill bit : 14m/min, 730rpm, 0.02mm FPT, 15mm/min feed, was in danger of stalling spindle, definitely the maximum size that can be drilled in this material
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