MUR Series Solid Carbide Micro Profiling Bars for Internal Profile Machining
Qualità costante
Consistent geometry across repeat orders.
Ordini flessibili
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Standard e personalizzati
Standard sizes and custom configurations.
MUR Micro Profiling Bar Overview
The MUR Series is a precision-ground solid carbide micro profiling bar designed for internal profile machining in small-diameter bores. Its 90°/22° compound cutting geometry supports controlled machining of internal contours, shoulders, chamfers, radiused transitions and other confined internal features.
Standard models cover cutting diameters from Ø2.8 to Ø7.9 mm, nose radii from R0.10 to R0.20 mm and clearance lengths from 10 to 22 mm. The one-piece carbide construction provides the rigidity required for dimensional consistency and fine surface finishing in CNC lathes and Swiss-type machines.
Key Product Features
• Internal Profile MachiningDesigned for machining internal contours, profile transitions, chamfers, shoulders and radiused features in small bores.
• 90°/22° Compound GeometryThe defined profiling geometry provides access to multiple internal surfaces while maintaining controlled tool clearance.
• Fine-Grain Solid CarbideOne-piece carbide construction provides rigidity and helps reduce deflection during miniature internal profile turning.
• Precision-Ground Cutting EdgeControlled nose radii from R0.10 to R0.20 mm support consistent profile dimensions and fine surface finishing.
Applicazioni tipiche
| Applicazione | Machining Purpose |
|---|---|
| Internal Profile Turning | Machining compound contours and profile transitions inside small-diameter bores. |
| Internal Chamfering | Producing controlled chamfers and angled transitions at internal features. |
| Shoulder Finishing | Finishing internal shoulders and adjacent bore surfaces where tool clearance is restricted. |
| Radius and Transition Finishing | Machining radiused transitions and blended internal profiles in precision-turned components. |
Micro Internal Machining Methods
Materiali consigliati per i pezzi da lavorare
Best ApplicationCarbon steel, alloy steel, stainless steel and copper alloys.
Suitable ApplicationPre-hardened steel, hardened steel below approximately 48 HRC, cast iron and titanium alloys. Application-specific coated versions are available for titanium and other difficult-to-machine materials.
Compatibilità della macchina
Precision internal contouring and finishing.
Small precision parts and high-volume production.
Repeatable internal profile machining.
Prototype and small-batch profile turning.
Product Detail Photos
MUR tool structure and profile geometryProduct Video
Selection Recommendation
Select the MUR model according to cutting diameter d1, nose radius R, required profile depth Q, clearance length L1, shank diameter D and overall length L. Verify the complete cutting and retraction path against the component drawing. Use the shortest practical clearance length and the largest compatible shank diameter to maximize rigidity.
MUR Series Specifications
The MUR Series includes solid carbide micro profiling bars for precision internal contour machining. Standard sizes cover cutting diameters from Ø2.8 to Ø7.9 mm, with clearance lengths from 10 to 22 mm. All dimensions shown below are in millimeters.
Model Designation
| Codice | Meaning | Example Value |
|---|---|---|
| MUR | Tool series | Micro internal profiling bar |
| 49 | Cutting diameter d1 | Ø4.9 mm |
| R015 | Nose radius R | R0.15 mm |
| L220 | Clearance length L1 | 22 mm |
| 550 | Shank diameter D and overall length L | Ø5 mm shank, 50 mm overall length |
Custom and special-profile tools may use a different model code. Confirm the approved production drawing before ordering a non-standard tool.
Dimension Definitions
| Symbol | Dimension | Descrizione |
|---|---|---|
| d1 | Diametro di taglio | Diameter represented by the cutting edge and used to identify the MUR model size. |
| R | Nose Radius | Cutting-edge radius used for forming and finishing internal profile transitions. |
| Q | Profile Cutting Depth | Catalog cutting-depth dimension for the specified profiling geometry. |
| L1 | Clearance Length | Reduced-neck length available for reaching the internal machining position. |
| D | Diametro del gambo | Nominal cylindrical shank diameter used for toolholding. |
| L | Lunghezza complessiva | Total tool length from the cutting edge to the end of the carbide shank. |
Profiling Geometry
Dimensions and Standard Sizes
Click the dimension chart to open the full-size image.
Standard Model Range
| Modello | d1 | R | Q | L1 | D | L |
|---|---|---|---|---|---|---|
| MUR3.0 | 2.8 | 0.10 | 0.50 | 10 / 15 | 4 | 50 |
| MUR4.0 | 3.9 | 0.10 | 0.60 | 10 / 15 | 4 | 50 |
| MUR5.0 | 4.9 | 0.15 | 0.80 | 15 / 22 | 5 | 50 |
| MUR6.0 | 5.9 | 0.20 | 1.00 | 15 / 22 | 6 | 50 |
| MUR8.0 | 7.9 | 0.20 | 1.20 | 22 | 8 | 60 |
Specification Range Summary
Selection Guidance
Recommended Starting Conditions
- Set the cutting edge accurately on the spindle centerline.
- Use the shortest practical overhang and a high-precision toolholder.
- Verify the tool path before machining shoulders or recessed profiles.
- Begin with a conservative feed and profile depth, especially on long-reach models.
- Apply suitable coolant or air flow to remove chips from the bore.
- Reduce cutting load if chatter, profile deviation or poor surface finish occurs.
- Adjust the cutting parameters according to material, coating, machine rigidity and bore depth.
Related Micro Internal Tool Series
47° Internal Profiling:MQR Series
Internal Profiling & Boring:MPR Series
General Internal Boring:MTR Series
Back Turning:MXR Series
We support distributors, tooling suppliers and industrial partners with flexible OEM and private label solutions for micro internal tooling products. From laser marking and customized packaging to product identification and technical documentation, we help customers build their own tooling product lines with reliable manufacturing support.
OEM Product Scope
We provide OEM and private label manufacturing solutions for micro internal tooling products, supporting distributors and tooling suppliers with standard series, customized specifications and drawing-based production.
MPR series and customized small-diameter boring tools for precision internal machining and anti-vibration applications.
MIR/MIL series with customized thread profiles, dimensions and product identification requirements.
Internal grooving and special groove solutions for miniature precision components.
Non-standard dimensions, special geometries and customer drawing-based tooling solutions are available.
Opzioni di personalizzazione
Laser Marking & Product Identification
Custom logo, model number and product identification marking can be provided according to distributor and brand requirements.
Custom Packaging
Individual packaging, labels and product information can be customized to support reseller sales channels and private brand development.
Technical Documents & Product Support
Support technical drawings, specifications and product information to help distributors promote and manage their tooling products.
OEM Workflow
Confirm drawings, specifications, materials and packaging requirements.
Finalize tool design, marking details and production requirements.
Provide samples for testing and approval before batch production.
Produce and inspect according to confirmed requirements.
Private Label Support for Distributors
For distributors and tooling resellers, we provide flexible private label support including customized marking, packaging solutions and product documentation to help establish a professional tooling product range.
We follow strict quality control procedures from raw material inspection to final shipment. Each tool is inspected to ensure consistent dimensions, cutting performance and reliable quality for industrial machining applications.
Processo di controllo della qualità
Verify carbide material quality and consistency before production.
Control tool geometry, dimensions and cutting edge accuracy during manufacturing.
Inspect edge quality and surface finish to maintain stable cutting performance.
Confirm product specifications before packing and shipment.
Inspection Standards
| Inspection Item | Purpose |
|---|---|
| Material Inspection | Verify carbide quality and material consistency. |
| Dimension Inspection | Confirm tool size and tolerance requirements. |
| Cutting Edge Inspection | Check edge geometry and surface quality. |
| Ispezione finale | Ensure products meet confirmed specifications before delivery. |
Packing & Protection
Individual protection and export packaging help prevent tool damage during storage and international transportation.
- Individual tool protection
- Product identification labels
- Batch traceability support
- Export shipment protection
Production & Delivery Workflow
Conferma d'ordine
Production Scheduling
Quality Inspection
Packing
Shipment
Delivery Support
Standard products can usually be shipped within 1–3 working days after order confirmation. Customized products require confirmation according to tool design, quantity and production requirements.
FAQ & Downloads
Product FAQs
What are MUR micro profiling bars used for?
What cutting diameters are available?
What does the 90°/22° geometry mean?
Which nose radii are available?
Selection & Application FAQs
How do I select the correct MUR profiling bar?
What materials can be machined with MUR profiling bars?
How can I improve machining stability?
Can one MUR tool machine several internal features?
How should chips be removed from a small bore?
Ordering & OEM FAQs
Can you manufacture custom MUR profiling bars?
Can distributors order mixed models or trial quantities?
Is OEM marking and private-label packaging available?
What information is required for a quotation?
What is the lead time for MUR profiling bars?
Risorse tecniche
Need Sizes, Pricing or Custom Options?
Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.
Drawings, size lists and reference photos are welcome.
