3-Tooth Solid Carbide Metric Thread Mill for Internal Threads
3-TOOTH SOLID CARBIDE METRIC THREAD MILL
Solid carbide 3-tooth metric thread mill for precision CNC internal threading, designed for stable cutting, controlled chip evacuation and accurate thread formation through circular or helical interpolation.
Product Configuration
Primary ApplicationPrecision metric internal thread milling by CNC circular or helical interpolation.
Consistent Quality
Consistent geometry across repeat orders.
คำสั่งซื้อที่ยืดหยุ่น
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
แบบมาตรฐานและแบบตามสั่ง
Standard sizes and custom configurations.
3-Tooth Solid Carbide Metric Thread Mill Overview
This 3-tooth solid carbide metric thread mill is designed for precision CNC internal threading. Three thread-form cutting teeth provide stable engagement and a practical balance between machining efficiency and thread-depth flexibility. CNC circular interpolation allows controlled adjustment of the finished thread diameter, while precision-ground carbide geometry supports consistent thread formation across standard and customized metric applications.
Tool Type3-Tooth Thread Mill
Tool MaterialSolid Carbide
Thread StandardMetric
Machining TypeInternal Thread Milling
Key Configuration
3-Tooth Geometry
Three thread-form teeth for stable CNC threading.
Precision Ground
Ground carbide geometry for controlled thread formation.
CNC Interpolation
Thread diameter adjustable through tool-path compensation.
Product Advantages
Precision-ground geometry supports stable cutting, controlled chip evacuation and consistent metric internal thread milling.
3-Tooth Geometry
Standard-Pitch Thread Cutting
Three thread-form cutting teeth provide stable engagement for precision metric internal threading.
Chip Control
Angled Chip-Groove Design
Ground chip grooves provide clearance for chip evacuation during circular interpolation.
Cutting Edge
Fully Ground Cutting Geometry
Precision-ground cutting edges support controlled cutting and consistent thread formation.
Tool Material
Solid Carbide Construction
Solid carbide construction provides rigidity for precision CNC thread milling.
Thread Milling Applications
Designed for CNC internal threading across standard and fine-pitch metric applications after the required hole has been prepared.

Workpiece Material Compatibility
Carbide grade, coating and cutting conditions should be matched to the workpiece material and machining requirement.
| MATERIAL GROUP | EXAMPLES | APPLICATION |
|---|---|---|
| P Steel | Carbon steel / Alloy steel | Suitable |
| M Stainless Steel | Austenitic / Martensitic stainless steel | Select coating by grade |
| K Cast Iron | Gray / Ductile cast iron | Application review |
| N Non-Ferrous | Aluminum / Copper / Selected alloys | Match geometry & coating |
Material Note:
Final carbide grade, coating and cutting parameters should be selected according to material grade, hardness, thread size, pitch and machining conditions.
Product & Machining Demonstration
Product view and machining reference for the 3-tooth solid carbide metric thread mill.


Need help selecting the right thread style, pitch or cutter type? Read our Thread Mill Selection Guide.
Tool Nomenclature & Dimensions
Reference dimensional nomenclature and standard configurations for the 3-tooth solid carbide metric thread mill. The tool uses three thread-form cutting teeth for CNC internal thread milling by circular or helical interpolation. All dimensions in the standard size matrix are listed in millimeters.
Technical Configuration
| PARAMETER | SPECIFICATION |
|---|---|
| Tool Material | Solid Carbide |
| Tooth Configuration | 3-Tooth Thread-Form Geometry |
| Thread Standard | Metric |
| Primary Machining Type | Internal Thread Milling |
| Thread Range | M1–M24 in Supplied Standard Matrix |
| Pitch Range P | 0.25–3.0 mm |
| Cutting Diameter d | Ø0.73–Ø16 mm |
| Shank Diameter D | Ø4–Ø16 mm |
| Overall Length L | 50–100 mm |
| Flute Count F | 3 / 4 Flutes According to Size |
| Thread Milling Method | CNC Circular / Helical Interpolation |
| Coating Options | Uncoated / Application-Specific Coating |
| Coolant / Chip Control | Air Blow / Oil Mist / External Coolant According to Application |
Standard Size Matrix
Reference 3-tooth metric thread mill configurations from the supplied size matrix. The same nominal thread size may appear more than once where pitch, cutting diameter, clearance length, shank diameter or flute count differs.
| THREAD SIZE | P Pitch | d Cutting Dia. | L1 Clearance | D Shank Dia. | L Overall Length | F Flutes |
|---|---|---|---|---|---|---|
| M1.0 | 0.25 | 0.73 | 3 | 4.0 | 50 | 3 |
| M1.2 | 0.25 | 0.92 | 3.6 | 4.0 | 50 | 3 |
| M1.4 | 0.30 | 1.05 | 4.2 | 4.0 | 50 | 3 |
| M1.6 | 0.35 | 1.20 | 4.8 | 4.0 | 50 | 3 |
| M1.8 | 0.35 | 1.41 | 4.5 | 4.0 | 50 | 3 |
| M2.0 | 0.40 | 1.55 | 6 | 4.0 | 50 | 3 |
| M2.2 | 0.45 | 1.63 | 6 | 4.0 | 50 | 3 |
| M2.5 | 0.45 | 2.00 | 7.5 | 4.0 | 50 | 3 |
| M3.0 | 0.50 | 2.40 | 9 | 4.0 | 50 | 3 |
| M3.5 | 0.60 | 2.75 | 9 | 4.0 | 50 | 3 |
| M4.0 | 0.70 | 3.15 | 12 | 4.0 | 50 | 3 |
| M4.5 | 0.75 | 3.50 | 12 | 4.0 | 50 | 3 |
| M5.0 | 0.80 | 4.00 | 15 | 4.0 | 50 | 3 |
| M2.0 | 0.40 | 1.55 | 6 | 6.0 | 50 | 3 |
| M2.5 | 0.45 | 2.00 | 7.5 | 6.0 | 50 | 3 |
| M3.0 | 0.50 | 2.40 | 9 | 6.0 | 50 | 3 |
| M3.5 | 0.60 | 2.75 | 9 | 6.0 | 50 | 3 |
| M4.0 | 0.70 | 3.15 | 12 | 6.0 | 50 | 3 |
| M5.0 | 0.80 | 4.00 | 15 | 6.0 | 50 | 3 |
| M6.0 | 0.75 | 5.00 | 15 | 6.0 | 50 | 3 |
| M6.0 | 1.00 | 4.80 | 15 | 6.0 | 50 | 3 |
| M8.0 | 0.50 | 6.00 | 20 | 6.0 | 50 | 3 |
| M8.0 | 0.75 | 6.00 | 20 | 6.0 | 50 | 3 |
| M8.0 | 1.00 | 6.00 | 20 | 6.0 | 50 | 3 |
| M8.0 | 1.25 | 6.00 | 20 | 6.0 | 50 | 4 |
| M10 | 0.50 | 8.00 | 20 | 8.0 | 60 | 4 |
| M10 | 1.00 | 8.00 | 20 | 8.0 | 60 | 4 |
| M10 | 1.25 | 8.00 | 25 | 8.0 | 60 | 4 |
| M10 | 1.50 | 8.00 | 25 | 8.0 | 60 | 4 |
| M10 | 1.50 | 8.20 | 30 | 10.0 | 75 | 4 |
| M12 | 1.00 | 10.00 | 37 | 10.0 | 75 | 4 |
| M12 | 1.50 | 10.00 | 30 | 10.0 | 75 | 4 |
| M12 | 1.75 | 10.00 | 30 | 10.0 | 75 | 4 |
| M14 | 1.00 | 10.00 | 37 | 10.0 | 75 | 4 |
| M14 | 1.50 | 10.00 | 37 | 10.0 | 75 | 4 |
| M14 | 2.00 | 10.00 | 37 | 10.0 | 75 | 4 |
| M16 | 1.00 | 12.00 | 37 | 12.0 | 75 | 4 |
| M16 | 1.50 | 12.00 | 37 | 12.0 | 75 | 4 |
| M16 | 2.00 | 11.50 | 37 | 12.0 | 75 | 4 |
| M20 | 1.50 | 15.80 | 45 | 16.0 | 100 | 4 |
| M20 | 2.00 | 15.80 | 45 | 16.0 | 100 | 4 |
| M20 | 2.50 | 16.00 | 45 | 16.0 | 100 | 4 |
| M24 | 3.00 | 16.00 | 45 | 16.0 | 100 | 4 |
Recommended Starting Cutting Parameters
Verified numerical cutting-speed and feed values are not included in the supplied product data. Starting conditions should therefore be selected according to cutting diameter, thread pitch, workpiece material, thread depth, coating, flute count, toolholder runout and machine rigidity.
| PARAMETER | SELECTION BASIS | STARTING GUIDANCE |
|---|---|---|
| Cutting Speed / Spindle Speed | d / workpiece material / carbide grade / coating | Confirm according to selected tool size and workpiece condition |
| Feed Rate | d / P / flute count F / interpolation path | Begin conservatively and optimize after thread inspection |
| Radial Compensation | Required thread size and fit | Adjust the CNC interpolation radius according to measured thread size |
| Tool Reach | L1 / thread depth / hole clearance | Use the shortest practical configuration that provides sufficient access |
| Chip Evacuation | Workpiece material / thread depth / blind-hole condition | Use suitable air, mist or coolant to reduce chip recutting |
3-Tooth Thread Mill Application Guidance
- Thread Size & Pitch: Confirm the required metric thread size and pitch before selecting the tool.
- 3-Tooth Geometry: The three thread-form cutting teeth provide an intermediate balance between single-form flexibility and longer multi-tooth configurations.
- Prepared Hole: Machine or drill the required hole before thread milling. This product is a thread mill and is not specified as a combined drilling tool.
- Cutting Diameter d: Confirm sufficient clearance between the cutter and the prepared hole before programming the interpolation path.
- Clearance Length L1: Select L1 according to the required thread depth while keeping unnecessary tool overhang to a minimum.
- Thread Compensation: Use CNC radial compensation to fine-adjust the finished thread diameter after inspection.
- Flute Count F: Flute count varies by tool size and is independent of the three-tooth thread-form configuration. Confirm F in the applicable size row.
- Toolholding: Use a clean, low-runout precision holder or collet matched to shank diameter D.
- Chip Evacuation: Use suitable air blow, mist or external coolant according to the workpiece material and blind-hole depth to reduce chip recutting.
Thread Mill Selection Resources
Not sure which thread mill matches your thread standard, pitch, diameter or machining application? Use our practical selection guide to compare thread specifications, tool styles and machining requirements before selecting a cutter.
3-Tooth Solid Carbide Metric Thread Mill Customization
Thread pitch, cutting diameter, clearance length, shank diameter, overall length, 3-tooth thread-form geometry, flute configuration, chip grooves, cutting-edge preparation and coating can be reviewed for precision CNC internal thread milling. Standard and non-standard configurations can be selected according to the required metric thread, prepared-hole diameter, thread depth, workpiece material, machining access and dimensional requirements.
| PARAMETER | MANUFACTURING CAPABILITIES |
|---|---|
| Metric Thread Specification | Standard metric configurations cover selected sizes from M1 to M24, while non-standard metric requirements can be reviewed according to the required thread specification and component drawing |
| Thread Pitch P | Standard pitch options from 0.25 to 3.0 mm, with the 3-tooth geometry matched to the required metric thread pitch |
| Cutting Diameter d | Standard cutting diameters from approximately Ø0.73 to Ø16 mm, with selected custom diameters reviewed according to pitch, nominal thread size and prepared-hole clearance |
| Clearance Length L1 | Clearance length can be selected according to required internal thread depth, blind-hole depth and machining access while minimizing unnecessary tool overhang |
| Shank Diameter D | Standard cylindrical shank diameters from Ø4 to Ø16 mm, with selected custom configurations reviewed according to holder and clamping requirements |
| Overall Length L | Standard overall lengths from 50 to 100 mm, with long-reach or drawing-defined configurations available for restricted-access and deeper-thread applications |
| 3-Tooth Geometry | Three thread-form cutting teeth can be configured according to the required metric pitch, thread depth and machining application |
| Flute Count F | Flute count varies by tool size and configuration and is confirmed separately from the 3-tooth thread-form geometry |
| Chip-Groove Geometry | Chip-groove geometry can be reviewed according to cutter diameter, thread depth, blind-hole conditions and workpiece chip characteristics |
| Cutting-Edge Preparation | Cutting-edge condition, rake surface and relief geometry can be selected according to workpiece material, hardness and expected cutting load |
| Coating Selection | Uncoated and application-specific coated configurations can be reviewed according to the workpiece material and machining conditions |
| Internal Thread Application | Configurations can be reviewed for through-hole threads, blind-hole threads, fine and standard metric pitches and CNC circular-interpolation applications |
| Dimensional Requirements | Drawing-defined requirements for P, d, L1, D, L, thread-form geometry, runout and other critical dimensions can be reviewed before production |
บริการ OEM และแบรนด์ส่วนตัว
OEM manufacturing and private-label supply options are available for cutting-tool distributors, tooling brands and repeat-production customers. Laser identification, thread-size marking, pitch information, custom labels, protective packaging and coating presentation can be configured according to the approved 3-tooth metric thread mill specification.
Laser Etching
Custom logos, metric thread size, pitch, tool code, dimensions, coating identification and batch information can be marked according to available shank space.
Custom Labels & Packaging
Protective tubes, metric thread and pitch labels, product codes and private-label packaging can be reviewed for distributor and OEM programs.
Commercial Terms
MOQ, standard-size samples, custom-tool trials, repeat orders and scheduled supply programs are confirmed according to dimensions, coating and packaging requirements.
Technical Workflow
A structured review process is used to confirm standard, customized and private-label 3-tooth metric thread mill requirements before production.
Inquiry
Submit metric thread size, pitch, thread depth, prepared-hole diameter, material, dimensions and quantity.
Engineering
Review P, d, L1, D, L, 3-tooth geometry, flute count, chip grooves, carbide configuration and coating.
Commercial
Confirm quotation, MOQ, sample requirements, custom-tool conditions, production schedule and delivery terms.
Production
Carbide blank preparation, CNC grinding, 3-tooth geometry grinding, flute formation, edge preparation, coating and laser marking.
Quality Control
Inspect thread-form geometry, P, d, L1, D, L, flute condition, runout and cutting-edge quality.
Quality, Inspection & Delivery
Our 3-tooth solid carbide metric thread mills are controlled through carbide material verification, precision CNC grinding, in-process measurement and final inspection. Thread pitch, 3-tooth cutting geometry, cutting diameter, clearance length, shank dimensions, flute condition, radial runout, coating appearance and product identification are reviewed according to the approved specification or custom drawing before packing.
Three-Stage Quality Control
Inspection checkpoints are arranged throughout the manufacturing process to support thread-form consistency, dimensional accuracy and repeat-order control.
Incoming Material Control
Carbide substrate specification, blank diameter, blank length and supplied material information are checked against the confirmed thread-mill production requirement.
In-Process Grinding Control
Thread pitch, 3-tooth geometry, cutting diameter d, clearance length L1, flute count, chip grooves and shank diameter D are monitored during precision CNC grinding.
Final Tool Inspection
Finished thread mills are reviewed for specified dimensions, thread-form tooth condition, flute geometry, radial runout, cutting-edge condition, coating appearance, marking and packing identification.
Key Inspection Characteristics
Inspection requirements are confirmed according to the standard 3-tooth metric thread mill specification or approved custom drawing.
| INSPECTION ITEM | CONTROL FOCUS | CONFIRMATION BASIS |
|---|---|---|
| Thread Pitch (P) | Pitch spacing and grinding consistency | Specified metric pitch or approved drawing |
| 3-Tooth Thread Geometry | Three thread-form cutting teeth and their profile consistency | Required metric thread specification and approved geometry |
| Cutting Diameter (d) | Cutting-section diameter and dimensional consistency | Standard size matrix or approved drawing |
| Clearance Length (L1) | Working reach and clearance-section length | Confirmed tool size or thread-depth requirement |
| Shank Diameter (D) | Clamping-section dimension and surface condition | Applicable shank specification |
| Overall Length (L) | Total tool length | Standard size matrix or approved drawing |
| Flute & Chip-Groove Geometry | Flute count, flute form and chip-groove consistency | Applicable size specification and approved manufacturing configuration |
| Radial Runout | Concentricity between cutting section and shank | Agreed inspection requirement |
| Cutting Edge & Coating | Edge condition, visible defects, coating coverage and appearance | Application-specific production requirement |
| Marking & Identification | Thread size, pitch, tool code and batch information | Confirmed order and OEM packaging specification |
Measurement & Batch Traceability
Optical measuring systems, tool inspection equipment and appropriate dimensional gauges are selected according to the thread-form feature and dimension being checked.
Tooth Geometry Measurement
Optical review of the three thread-form teeth and critical cutting geometry.
Runout Verification
Concentricity between the thread-milling cutting section and precision shank is reviewed according to the agreed requirement.
Cutting-Edge Inspection
Magnified inspection checks thread-form cutting edges, flute surfaces and visible grinding defects.
Batch Identification
Order, thread size, pitch, product code and batch information can be linked where required for repeat supply.
Protective Packaging Process
Finished 3-tooth thread mills are individually protected to reduce contact with precision-ground thread-form teeth and cutting edges while supporting clear size, pitch and batch identification during storage and transportation.
Bulk-Order & Export Packaging
Bulk orders of standard and customized 3-tooth thread mills can be arranged with reinforced cartons, protective wrapping, palletized loading or export cases according to quantity, shipment weight and transportation requirements.
Delivery Coordination
In-stock standard sizes can normally be prepared for shipment within 1–3 days. Lead time for custom 3-tooth thread mills is confirmed after thread size, pitch, dimensions, coating, quantity and packaging requirements are approved. Courier, air, sea or customer-designated shipping options can be reviewed according to shipment size and destination.
FAQ & Downloads
Review common selection, application and ordering questions for the 3-tooth solid carbide metric thread mill for precision CNC internal threading.
Product & Application FAQs
Selection and application guidance for 3-tooth metric internal thread milling.
What is a 3-tooth solid carbide metric thread mill?
A 3-tooth thread mill uses three thread-form cutting teeth to generate internal metric threads through CNC circular or helical interpolation. The three-tooth configuration provides an intermediate balance between cutting efficiency, chip space and thread-depth flexibility.
What is the difference between 3-tooth, single-form and full-profile thread mills?
A single-form thread mill uses one thread-form cutting section and offers greater flexibility for varying thread depths. A 3-tooth thread mill uses three thread-form teeth and provides an intermediate balance between flexibility and machining efficiency. A full-profile thread mill uses a longer pitch-specific multi-tooth cutting section for repeat production of confirmed thread specifications.
Can a 3-tooth metric thread mill machine different thread diameters?
In compatible applications, the finished thread diameter can be adjusted through the CNC interpolation radius. Tool suitability still depends on thread pitch, cutting diameter, prepared-hole size, required thread form and available machining clearance.
Is a 3-tooth thread mill suitable for blind-hole internal threads?
Yes, provided the prepared-hole depth, required thread depth, clearance length L1 and bottom clearance are suitable. Effective chip evacuation is also important in blind-hole applications.
Does 3-tooth mean the tool has three flutes?
No. 3-tooth describes the number of thread-form cutting teeth along the cutting section. Flute count is a separate tool parameter and can vary by tool size. Refer to the F value in the applicable size-table row.
What materials can this solid carbide metric thread mill machine?
The tool can be configured for carbon steel, alloy steel, stainless steel, cast iron and selected non-ferrous materials. Carbide configuration, cutting-edge preparation, coating and cutting parameters should be selected according to workpiece material, hardness and threading conditions.
How is the finished thread diameter adjusted?
The finished thread diameter can be fine-adjusted through CNC radial or interpolation compensation. The programmed tool path can be corrected after checking the machined thread size and required fit.
Ordering & Customization FAQs
Information for distributors, tooling brands and industrial buyers sourcing standard or custom 3-tooth metric thread mills.
What standard 3-tooth metric thread mill sizes are available?
The supplied standard matrix covers selected metric sizes from M1 to M24 with pitches from 0.25 to 3.0 mm. Cutting diameters range from approximately Ø0.73 to Ø16 mm, shank diameters from Ø4 to Ø16 mm and overall lengths from 50 to 100 mm. Final selection should be made using P, d, L1, D, L and F together.
Can you manufacture custom 3-tooth metric thread mills?
Yes. Thread pitch, cutting diameter d, clearance length L1, shank diameter D, overall length L, 3-tooth geometry, flute count, chip grooves, coating and other drawing-defined requirements can be reviewed according to the machining application.
Are custom coatings, OEM marking and private-label packaging available?
Yes. Application-specific coatings, laser-marked logos, metric thread size, pitch, product codes, custom labels, protective tubes and private-label packaging can be reviewed according to the confirmed tool specification and order quantity.
What is the lead time for standard and custom 3-tooth thread mills?
In-stock standard sizes can normally be prepared for shipment within 1–3 days. Custom thread mills require confirmation of thread size, pitch, dimensions, coating, quantity, marking and packaging requirements before the production lead time is confirmed.
Technical Downloads
Access general carbide tooling references for product selection and CNC cutting-parameter review.
Solid Carbide End Mills Catalog
Product families, carbide tooling configurations and reference size information.
Threading & Reaming Tools Cutting Data
General starting references for carbide threading tools and cutting-parameter adjustment.
Thread-milling cutting data should be confirmed according to cutter diameter, metric pitch, thread depth, workpiece material and hardness, coating, flute count, tool overhang, holder runout and machine rigidity.
Related Guides & Thread Mill Resources
Explore practical thread-milling selection guides and related solid carbide thread mill series for different thread standards, materials and machining requirements.
Selection guidance for thread standards, pitch, tool style, diameter, depth and workpiece material.
Compare flexibility, thread size range, breakage risk and typical machining applications.
Browse metric, inch, UNC/UNF, single-form, full-profile and application-specific thread mill series.
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.












