Internal thread burrs
Thread-start burrs or internal burrs can affect assembly, thread fit or cleaning. Thread entry and bore intersections should be reviewed before production.
Production Example
Mirror Polished Brass Threaded Sleeve CNC Machining Production Example
A DXSCNC production example for a CNC turned brass sleeve with internal thread and mirror-polished surface. The focus is thread quality, bore finish, burr control, visible-surface protection and packing review.
Confidentiality Note
This production example uses DXSCNC-owned product photos. Customer identity, drawing number, order value and confidential project information are not published. Project data that is not approved for public use is marked as a public evidence limit.
Project Snapshot
| Page type | Production Example |
|---|---|
| Component category | Brass threaded sleeve / internally threaded CNC turned sleeve |
| Material | Brass; exact grade to be confirmed by DXSCNC |
| Process | CNC turning |
| Surface finish | Mirror polished brass surface |
| Key features | Internal thread, bore, outside diameter, shoulder, chamfer, polished outer surface and top hole feature |
| Inspection focus | Internal thread fit, bore diameter, OD, chamfer, burr-free thread entry, surface scratches and polished appearance |
| Packing focus | Individual protection to reduce thread damage, polishing scratches and oxidation marks |
| Public evidence limit | DXSCNC-owned product photos are shown; customer details, drawing data, quantity and order value are not disclosed |
Product Features
This is a CNC turned brass sleeve with an internal thread and mirror-polished surface. It represents drawing-based brass components where thread quality, bore finish, visible-surface appearance and careful handling matter.
The visible geometry includes an internal thread, central bore, outside turned diameter, shoulder transition, chamfered edges, polished outer surface and a top hole feature. For a similar RFQ, these features should be checked together instead of treated as isolated dimensions.
Real Production Photos
The photos below are DXSCNC-owned product photos. The original wood-table background is retained to show the real product context; the images have only been centered, cropped, resized and compressed for website use.
Material and Process
The published material group is brass. The exact brass grade is not published on this page, so buyers should specify the required grade or equivalent standard when requesting a quotation.
The main process for this production example is CNC turning. Internal threading, bore control, OD turning, chamfering and visible-surface protection need to be reviewed from the drawing and finish requirements.
Process notes
- CNC turning
- Internal thread machining
- Bore and OD review
- Chamfer and edge control
- Mirror-polished surface handling
- Packing protection review
Manufacturing Risks
Thread entry damage
Brass is softer than many steels, so thread entrances and polished edges can be marked during handling if protection is not planned.
Bore-to-OD relationship
If the bore and outside diameter affect assembly fit, the drawing should define the datum relationship and tolerance requirement clearly.
Chamfer consistency
Chamfers should support assembly and burr removal while avoiding visible edge inconsistency on polished brass.
Surface scratches after polishing
Mirror-polished surfaces can show scratches, tool marks, fingerprints or handling marks more easily than matte finishes.
Oxidation or color variation
Brass appearance can change with handling, cleaning, storage and shipping conditions, so surface protection and packing should be discussed during RFQ.
Inspection Focus
- Internal thread gauge or thread-fit check when specified
- Bore diameter and bore finish
- Outside diameter and shoulder condition
- Chamfer and edge condition
- Visual burr check at thread entry and bore areas
- Visual check for polishing scratches and handling marks
- Surface appearance review before packing
Surface Treatment / Packing
Mirror-polished brass components can show scratches, handling marks, oxidation and tool marks easily. Surface quality should be protected during machining, inspection, cleaning and packing.
For similar parts, soft material, individual wrapping or separated packing can reduce thread damage, polished-surface scratches and oxidation risk during handling and export shipping.
Engineering Takeaway
For mirror-polished brass threaded sleeves, the drawing should define more than the nominal thread and outside diameter. Buyers should identify the thread standard, bore and OD tolerances, visible surfaces, polishing requirement, burr-free areas and packing sensitivity before production.
Buyer focus
- Thread fit and thread entry
- Bore finish and bore diameter
- Visible polished surfaces
- Chamfer and edge condition
- Oxidation prevention
- Separated packing for export
RFQ Checklist
- 2D drawing
- 3D model if available
- Brass grade or equivalent standard
- Quantity
- Internal thread standard
- Bore and OD tolerances
- Surface finish requirement
- Mirror polishing requirement
- Anti-oxidation requirement
- Critical visible surfaces
- Packing requirements
Send drawings for review
DXSCNC will review thread quality, bore finish, visible-surface handling, burr-control risk and packing protection before quoting.
Send Drawings for ReviewRelated Pages
CNC Turning
View related pageThreaded Components
View related pageSleeves & Bushings
View related pageBrass CNC Turned Fittings
View related pageQuality Inspection
View related pageRequest a Quote
View related pageCase Studies
View related pageFAQ
Can DXSCNC machine brass sleeves with internal threads?
Yes. DXSCNC manufactures drawing-based brass sleeves and threaded brass components, with review of thread specification, bore size, burr control, surface finish and packing requirements before quotation.
Can DXSCNC make mirror polished brass CNC parts?
Yes. For mirror polished brass parts, DXSCNC reviews the drawing, visible surfaces, polishing requirement, handling risk and packing method before production.
What should buyers provide for a mirror polished brass threaded sleeve RFQ?
Buyers should provide a 2D drawing, 3D model if available, brass grade, quantity, internal thread standard, bore and OD tolerances, surface finish requirement, polishing requirement and packing notes.
How does DXSCNC protect polished brass parts during packing?
Polished brass parts can be individually wrapped or separated with soft packing material to reduce thread damage, surface scratches and oxidation risk during handling and export shipping.
Is this a public customer case study?
This is a DXSCNC production example. Customer identity, drawing details and order data are not published.
Request a Quote
Ready to review a brass threaded sleeve project?
Send drawings, brass grade, quantity, internal thread standard, tolerance requirements, mirror-polishing requirement and packing notes.
Drawing review
DXSCNC will review machining range, thread fit, burr-control risk, visible-surface protection and inspection feasibility before quoting.
Request a Quote