Is the R value a corner radius or a full ball radius on this page?
These are corner radius end mill records. R identifies the edge radius shown on the relevant drawing; the tool is not automatically a ball nose cutter. Compare the end profile and corner transition with the part before selecting by the same outer diameter.
Which dimensions must match when replacing a long reach corner radius model?
Compare cutting diameter, corner radius, flute length, effective length, shank and overall length, together with flute count and the selected series. Include the workpiece and operation. A diameter match can hide a different corner profile or a different clearance envelope.
Can an NRMA radius be assumed to match every NRMB or DRMB model of the same diameter?
No. Read the individual radius and length entries rather than inferring them from the family name. Retain the complete model code in the quotation list, especially where two- and four-flute configurations or different reach variants are being compared.
What should the pocket drawing show for a radius-and-reach review?
Show the required corner transition, wall depth and nearby obstructions, with the intended holder and projection. The working radius must suit the feature while the neck and shoulder clear the surrounding material. Neither condition can be established from diameter alone.
Does a corner radius eliminate edge chipping or permit a higher feed automatically?
No universal performance result follows from the profile name. The workpiece, engagement, tool geometry and setup still matter. State the trial conditions and the acceptance requirement rather than making a purchasing decision from an unverified strength or feed-rate claim.
How should a mixed corner-radius and reach order be organised?
Use one line per full model and quantity, keeping D, R, Lc and L1 with the corresponding item. Add the relevant drawing and any inspection or packing requirements. Do not collapse different radii into a single diameter-only order line.
