Measure first.
Plan with confidence.

Use the exact toolmaker recommendation, calculate with consistent units, check machine and setup limits, and change one variable at a time.

SFM is cutting-edge speed relative to the work at the active diameter; the correct diameter and process context matter as much as the arithmetic.

Start with the drawing and a relevant table; percentage engagement is only a planning relationship.

Convert each equally spaced angle to X/Y coordinates and prove the reference feature.