Undercuts
Show the surface hidden behind the opening or shoulder.
Spherical-head tools · Undercut access
Lollipop End Mills
Undercuts and curved surfaces behind a restricted opening.
A lollipop cutter uses a spherical cutting head and a narrower neck to reach behind features. The head must pass through the entry and the neck must clear the surface during the cut. Provide the part section and intended approach for a useful feasibility review.
Undercuts Back deburring Curved recesses
Application guide
Where lollipop end mills fit.
Use the part feature and its acceptance requirements to narrow the tool choice.
Back deburring
Identify the edge and the allowable removal around it.
Curved recesses
Check how much of the spherical profile must engage.
Selection & configuration
Define the details that change the tool.
Check the head diameter, wrap angle and neck clearance against a section of the part. Access limitations can be more restrictive than cutting diameter.
| Decision | What to specify | Why it matters |
|---|---|---|
| Head geometry | Diameter and required cutting coverage | Not every part of every head is necessarily a cutting edge. |
| Neck | Diameter, length and clearance | The neck defines access behind the obstruction. |
| Toolpath | Approach, cutting orientation and withdrawal | The operation needs a complete collision check. |
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Build your configuration brief
Include these details so the tool dimensions and application can be reviewed together.
- Part drawing
- Workpiece material
- Cutting access
- Critical tolerance
- Current process
- Quantity
From drawing to inspection
Agree on what needs to be measured.
A tool specification should describe both the cutting geometry and the acceptance requirements. Mark critical dimensions on the drawing and discuss how they will be checked before ordering.
- Geometry reviewConfirm the profile, working length, access and critical dimensions.
- Inspection requirementsSpecify dimensional or profile checks and any reporting requirements.
- Application verificationAgree on sample evaluation where a new material, geometry or process needs a trial.
Selection questions
Before you order.
Practical answers for lollipop end mills.
What limits the access of a lollipop end mill?
Head diameter, neck clearance, cutting coverage and holder position all matter. Share a section and the intended motion so access can be checked beyond a single static tool position.
What should I include when requesting lollipop end mills?
Part drawing; workpiece material; cutting access; critical tolerance; current process; quantity. Add the quantity and delivery destination. A drawing or marked part section helps identify critical dimensions and clearance constraints.
How are dimensions and delivery confirmed?
The quotation and agreed drawing define the tool configuration, inspection scope, quantity and delivery schedule. Reference images show the tool family; use the confirmed specification for ordering.
Start with your application
Request lollipop end mills.
Send your drawing or machining requirement. Your selected tool category and a checklist will be carried into the inquiry form.