Dimensions and mounting
Confirm shank diameter, cutting length, outside diameter, bore, thickness, arbor type, collet, chuck or flanges.
Machine and speed
Check the exact machine model, capacity, speed range, approved diameter and required accessories.
Material and operation
The product should explicitly state the intended material and task: cutting, grooving, drilling, grinding, deburring or finishing.
Depth and clearance
Check cutting length, maximum depth, tool projection, holder clearance and risk of contact with the non-cutting shank.
Traceability
Keep the reference, manufacturer, technical sheet, purchase date, maximum RPM, batch and warranty conditions when available.
Limits and precautions
Do not choose a product based only on its image or marketing title. Technical dimensions and limits must be verifiable.