Step-by-Step: Finishing a Round Rod into an End Mill Blank
Start with as-sintered rod blank — Oversized by 0.010–0.020" on diameter, plus 0.020–0.060" on length.
Centerless grind OD — Achieve final diameter ±0.0002" and surface finish 6–8 Ra µin.
Cut to length — Use thin diamond wheel or wire EDM.
Grind end square — Surface grind or use diamond wheel on lathe....
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