Which GBM dimensions determine access to a recessed graphite feature?
Compare R and D for the working surface, then Lc, L1 and the larger body clearance. Include the holder and cavity section. A matching ball radius alone does not establish sufficient access.
Can a standard graphite ball nose tool replace GBM?
Only after comparing the effective reach, flute length and clearance envelope. A rounded profile describes the tip, not the access behind it. Retain the actual model and part section in the comparison.
Does the GBM graphite label prove a diamond coating?
No. The application category and a photograph do not establish coating chemistry. State any treatment requirement with the chosen model and use the agreed item specification as the evidence.
What graphite information is needed for a GBM application review?
Include grade, feature geometry, required finish, operation and the machine dust-control arrangement. Record engagement and setup conditions where technical review is requested. Do not derive universal cutting settings from the material title.
Can the relieved GBM section be treated as extra cutting length?
Keep Lc and L1 separate. The clearance behind the cutting section does not automatically provide additional cutting edge. Review engagement and the cavity section against the actual model drawing.
What should a GBM purchasing trial evaluate?
Agree the cavity dimensions and surface requirement with the selected model. Record projection, holder, path and dust-control conditions. Keep those conditions and the approved drawing with any repeat-order reference.