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Sweet Spots for Feeds and Speeds. Feeding too Much Chipload: Tool Breakage. MRR. Faster. Best Tool Life Moderate MRR Moderate Surface Finish. Surface Finish. Feedrate. Too Fast: Tool Burns Up. Older Machines May Prefer HSS Tooling!. Feeding too Slow: Rubbing / Poor Tool Life.
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Sweet Spots for Feeds and Speeds Feeding too Much Chipload: Tool Breakage MRR Faster Best Tool Life Moderate MRR Moderate Surface Finish Surface Finish Feedrate Too Fast: Tool Burns Up Older Machines May Prefer HSS Tooling! Feeding too Slow: Rubbing / Poor Tool Life Slower Slower Spindle RPM Faster