NHAM Series · R099
Thread Mills for Hardened Materials
Source thread mills for hardened-material applications by thread size, pitch and tool geometry. AXIMET's NHAM, NHBM and NHCM catalog groups provide model-level dimensions for comparing cutters against your part drawing and machine setup.
- Hardened-type thread mill series listed by model
- Thread size, pitch and cutter dimensions shown in the catalog tables
- Share material grade and hardness for application review
Start With the Actual Material and Thread Drawing
A hardened-material thread mill must be matched to more than the nominal thread size. Provide the workpiece grade and measured or specified hardness, the thread form, pitch and depth, and the machine and holder setup. These details help identify the relevant model and avoid selecting a cutter solely from its diameter.
- Identify the material grade, heat-treatment condition and hardness.
- Match the thread size and pitch to the individual catalog entry.
- Check feature depth, cutter clearance and holder projection.
NHAM, NHBM and NHCM Series
The catalog groups these hardened-type thread mills under the NHAM, NHBM and NHCM series. Each model table lists the thread designation, pitch, cutter diameter, overall length, shank diameter and flute count. NHAM and NHBM tables include effective length; NHCM tables show flute length. Consult the matching series drawing when comparing those dimensions.
Use the listed model code and complete row for each RFQ line. Options differ by series, thread size and pitch; a dimension appearing on one row should not be assigned to another model.
For example, NHCM160P150 and NHCM160P150L share an M16 thread designation and a 1.5 pitch, but their catalogue rows list different cutter diameters and flute lengths. Check the complete drawing, prepared bore and setup before selecting either model.
Information Needed to Select a Hardened-Material Cutter
| Buying decision | Information to provide |
|---|---|
| Workpiece condition | Material grade, heat-treatment condition and actual or specified hardness |
| Thread requirement | Thread standard, nominal size, pitch, tolerance and direction |
| Hole and access | Blind or through, prepared bore dimensions, thread depth and bottom clearance |
| Tool fit | Cutter diameter, reach, shank and holder details |
| Production setup | Machine and control, interpolation capability and coolant arrangement |
| Purchase order | Requested model, quantity, sample and packaging requirements |
Hardness and material grade should be provided for the actual workpiece condition, not just its name before heat treatment. Include the part drawing when a feature has restricted access or a critical thread depth. The final model selection depends on these requirements and the information for the selected series.
Review Clearance Before Tool Selection
For an internal thread, compare the cutter diameter with the prepared hole and the programmed tool path. The cutter, neck and holder all need clearance along the operation. A larger shank or holder can create interference even when the cutting end fits into the opening.
For blind holes, distinguish the full thread depth from the bottom of the drilled feature. Provide the required thread length and bottom clearance on the drawing. The listed flute or effective length is a tool dimension; it should not be treated as an automatic guarantee of usable thread depth.
Plan the Trial and Repeat Order
Before a trial, agree on the selected model and the dimensions to inspect. Keep the part material, hardness, machine and holder setup with the sample record. Evaluate the machined thread against the part's specified gauge or inspection method, and retain the agreed reference for repeat orders.
If a drawing revision changes the pitch, thread tolerance or workpiece condition, review the selection again. A previous cutter model may not be suitable for a changed requirement simply because the nominal thread size remains the same.
Compare General-Purpose and Hardened-Type Tools
Both categories must be selected by the required thread and setup. A hardened-type catalog designation helps identify the intended product family, but does not establish a universal hardness limit or cutting condition for every model. Send the actual material and hardness when choosing between families, and refer to the selected tool's available technical information for operating recommendations.
For a general application, compare the general-purpose thread mill while preserving the specified thread size, pitch and tool dimensions.
Catalog Series, Product Views and Dimension Drawings
NHBM Series · R100
NHCM Series · R101
NHCM Series · R102
Catalog Model Specifications
Compare NHAM, NHBM and NHCM thread specifications and tool dimensions with the hardened-workpiece application.
NHAM · R099 · 3/4/5/6 FLUTES
| Type No. | Thread (M) | Pitch (P) | Diameter (D, mm) | Effective length (L1, mm) | Overall length (L, mm) | Shank Dia (d, mm) | Flutes (F) |
|---|---|---|---|---|---|---|---|
| NHAM008P020A | M0.8 | 0.2 | 0.55 | 2 | L50 | 4 | 3 |
| NHAM009P0225A | M0.9 | 0.225 | 0.6 | 2 | L50 | 4 | 3 |
| NHAM010P025A | M1 | 0.25 | 0.73 | 2.3 | L50 | 4 | 3 |
| NHAM012P025A | M1.2 | 0.25 | 0.92 | 2.8 | L50 | 4 | 3 |
| NHAM014P030A | M1.4 | 0.3 | 1.05 | 3.2 | L50 | 4 | 3 |
| NHAM016P035A | M1.6 | 0.35 | 1.21 | 3.5 | L50 | 4 | 3 |
| NHAM020P040A | M2 | 0.4 | 1.54 | 4.5 | L50 | 4 | 3 |
| NHAM025P045A | M2.5 | 0.45 | 1.96 | 5.5 | L50 | 4 | 3 |
| NHAM030P050A | M3 | 0.5 | 2.4 | 7 | L50 | 4 | 3 |
| NHAM040P070A | M4 | 0.7 | 3.15 | 8.6 | L50 | 4 | 4 |
| NHAM050P080A | M5 | 0.8 | 4 | 12 | L50 | 4 | 4 |
| NHAM050P080 | M5 | 0.8 | 4 | 13 | L50 | 6 | 4 |
| NHAM060P100 | M6 | 1 | 4.75 | 15 | L50 | 6 | 4 |
| NHAM080P125 | M8 | 1.25 | 5.95 | 17.5 | L50 | 6 | 4 |
| NHAM100P150 | M10 | 1.5 | 7.9 | 25 | L60 | 8 | 6 |
| NHAM120P175 | M12 | 1.75 | 9.9 | 30 | L75 | 10 | 6 |
| NHAM140P200 | M14 | 2 | 9.9 | 30 | L75 | 10 | 6 |
| NHAM160P200 | M16 | 2 | 11.9 | 35 | L75 | 12 | 6 |
| NHAM180P250 | M18 | 2.5 | 14 | 40 | L100 | 14 | 5 |
| NHAM220P300 | M22 | 3 | 16 | 45 | L100 | 16 | 5 |
| NHAM300P600 | M30 | 6 | 20 | 50 | L100 | 20 | 6 |
NHBM · R100 · 3/4/6 FLUTES
| Type No. | Thread (M) | Pitch (P) | Diameter (D, mm) | Effective length (L1, mm) | Overall length (L, mm) | Shank Dia (d, mm) | Flutes (F) |
|---|---|---|---|---|---|---|---|
| NHBM010P025A | M1 | 0.25 | 0.73 | 2.3 | L50 | 4 | 3 |
| NHBM012P025A | M1.2 | 0.25 | 0.92 | 3.3 | L50 | 4 | 3 |
| NHBM014P030A | M1.4 | 0.3 | 1.05 | 3.2 | L50 | 4 | 3 |
| NHBM016P035A | M1.6 | 0.35 | 1.21 | 3.5 | L50 | 4 | 3 |
| NHBM018P035A | M1.8 | 0.35 | 1.4 | 4 | L50 | 4 | 3 |
| NHBM020P040A | M2 | 0.4 | 1.54 | 4.5 | L50 | 4 | 3 |
| NHBM022P045A | M2.2 | 0.45 | 1.65 | 5 | L50 | 4 | 3 |
| NHBM025P045A | M2.5 | 0.45 | 1.96 | 5.5 | L50 | 4 | 3 |
| NHBM030P050A | M3 | 0.5 | 2.42 | 7 | L50 | 4 | 3 |
| NHBM035P060A | M3.5 | 0.6 | 2.75 | 9 | L50 | 4 | 3 |
| NHBM040P050A | M4 | 0.5 | 3.4 | 8 | L50 | 4 | 3 |
| NHBM040P070A | M4 | 0.7 | 3.15 | 8.8 | L50 | 4 | 3 |
| NHBM045P075A | M4.5 | 0.75 | 3.5 | 11 | L50 | 4 | 3 |
| NHBM050P050A | M5 | 0.5 | 3.9 | 8 | L50 | 4 | 3 |
| NHBM050P075A | M5 | 0.75 | 3.9 | 8 | L50 | 4 | 3 |
| NHBM050P080A | M5 | 0.8 | 3.95 | 12 | L50 | 4 | 3 |
| NHBM050P080 | M5 | 0.8 | 4 | 12 | L50 | 6 | 3 |
| NHBM060P050 | M6 | 0.5 | 4.8 | 13 | L50 | 6 | 3 |
| NHBM060P075 | M6 | 0.75 | 5 | 13 | L50 | 6 | 3 |
| NHBM060P100A | M6 | 1 | 3.95 | 14 | L50 | 4 | 3 |
| NHBM060P100 | M6 | 1 | 4.75 | 13 | L50 | 6 | 3 |
| NHBM080P075 | M8 | 0.75 | 5.95 | 20 | L50 | 6 | 3 |
| NHBM080P100 | M8 | 1 | 5.9 | 20 | L60 | 6 | 3 |
| NHBM080P050 | M8 | 0.5 | 5.95 | 16 | L50 | 6 | 4 |
| NHBM080P125 | M8 | 1.25 | 5.95 | 20 | L60 | 6 | 3 |
| NHBM100P100 | M10 | 1 | 7.9 | 21 | L60 | 8 | 4 |
| NHBM100P125 | M10 | 1.25 | 7.95 | 21 | L60 | 8 | 4 |
| NHBM100P150 | M10 | 1.5 | 7.9 | 22 | L60 | 8 | 4 |
| NHBM100P150L | M10 | 1.5 | 7.9 | 30 | L75 | 8 | 4 |
| NHBM120P100 | M12 | 1 | 9.9 | 30 | L75 | 10 | 4 |
| NHBM120P150 | M12 | 1.5 | 9.9 | 30 | L75 | 10 | 4 |
| NHBM120P125 | M12 | 1.25 | 9.9 | 30 | L75 | 10 | 4 |
| NHBM120P175 | M12 | 1.75 | 9.9 | 28 | L75 | 10 | 4 |
| NHBM140P200 | M14 | 2 | 9.9 | 28 | L75 | 10 | 4 |
| NHBM160P150 | M16 | 1.5 | 11.9 | 35 | L75 | 12 | 4 |
| NHBM160P200 | M16 | 2 | 11.9 | 35 | L75 | 12 | 4 |
| NHBM220P250 | M22 | 2.5 | 15.9 | 50 | L100 | 16 | 6 |
| NHBM240P300 | M24 | 3 | 15.9 | 50 | L100 | 16 | 6 |
| NHBM240P350 | M24 | 3.5 | 15.9 | 50 | L100 | 16 | 6 |
NHCM · R101 · 3/4 FLUTES
| Type No. | Thread (M) | Pitch (P) | Diameter (D, mm) | Flute length (Lc, mm) | Overall length (L, mm) | Shank Dia (d, mm) | Flutes (F) |
|---|---|---|---|---|---|---|---|
| NHCM016P035A | M1.6 | 0.35 | 1.2 | 3.5 | L50 | 4 | 3 |
| NHCM020P040A | M2 | 0.4 | 1.54 | 5 | L50 | 4 | 3 |
| NHCM025P045A | M2.5 | 0.45 | 1.96 | 6 | L50 | 4 | 3 |
| NHCM030P050A | M3 | 0.5 | 2.4 | 7.5 | L50 | 4 | 3 |
| NHCM035P060A | M3.5 | 0.6 | 2.75 | 8.5 | L50 | 4 | 3 |
| NHCM040P050A | M4 | 0.5 | 3 | 8 | L50 | 4 | 3 |
| NHCM040P070A | M4 | 0.7 | 3.15 | 10 | L50 | 4 | 3 |
| NHCM045P075A | M4.5 | 0.75 | 3.4 | 9 | L50 | 4 | 3 |
| NHCM050P050A | M5 | 0.5 | 3.9 | 12 | L50 | 4 | 3 |
| NHCM050P080A | M5 | 0.8 | 3.95 | 12 | L50 | 4 | 3 |
| NHCM050P080 | M5 | 0.8 | 3.9 | 13 | L50 | 6 | 3 |
| NHCM060P050 | M6 | 0.5 | 4.8 | 13 | L50 | 6 | 3 |
| NHCM060P075A | M6 | 0.75 | 3.9 | 12 | L50 | 4 | 3 |
| NHCM060P075 | M6 | 0.75 | 5 | 17 | L60 | 6 | 3 |
| NHCM060P100A | M6 | 1 | 3.95 | 12 | L50 | 4 | 3 |
| NHCM060P100 | M6 | 1 | 4.75 | 13 | L50 | 6 | 3 |
| NHCM080P050 | M8 | 0.5 | 5.9 | 16 | L60 | 6 | 3 |
| NHCM080P075 | M8 | 0.75 | 5.95 | 18 | L60 | 6 | 3 |
| NHCM080P100 | M8 | 1 | 5.95 | 15 | L60 | 6 | 3 |
| NHCM080P125 | M8 | 1.25 | 5.9 | 20 | L60 | 6 | 3 |
| NHCM100P050 | M10 | 0.5 | 7.9 | 20 | L65 | 8 | 4 |
| NHCM100P075 | M10 | 0.75 | 7.9 | 22 | L65 | 8 | 4 |
| NHCM100P100 | M10 | 1 | 7.95 | 22 | L65 | 8 | 4 |
| NHCM100P125 | M10 | 1.25 | 7.9 | 20 | L65 | 8 | 3 |
| NHCM100P150 | M10 | 1.5 | 7.7 | 22 | L65 | 8 | 4 |
| NHCM120P050 | M12 | 0.5 | 9.95 | 25 | L75 | 10 | 4 |
| NHCM120P075 | M12 | 0.75 | 9.95 | 20 | L75 | 10 | 4 |
| NHCM120P100 | M12 | 1 | 9.9 | 20 | L65 | 10 | 4 |
| NHCM120P100L | M12 | 1 | 9.9 | 28 | L75 | 10 | 4 |
| NHCM120P125 | M12 | 1.25 | 9.9 | 25 | L75 | 10 | 4 |
| NHCM120P150 | M12 | 1.5 | 9.4 | 24 | L75 | 10 | 4 |
| NHCM120P175 | M12 | 1.75 | 9.5 | 25 | L75 | 10 | 4 |
| NHCM140P050 | M14 | 0.5 | 11.9 | 30 | L75 | 12 | 4 |
| NHCM140P100 | M14 | 1 | 11.9 | 30 | L75 | 12 | 4 |
| NHCM140P100L | M14 | 1 | 11.9 | 32 | L80 | 12 | 4 |
| NHCM140P150 | M14 | 1.5 | 9.9 | 25 | L75 | 10 | 4 |
| NHCM140P150L | M14 | 1.5 | 11.2 | 30 | L75 | 12 | 4 |
| NHCM140P200 | M14 | 2 | 9.9 | 30 | L75 | 10 | 4 |
| NHCM140P200D | M14 | 2 | 11.2 | 30 | L75 | 12 | 4 |
NHCM · R102 · 4/5 FLUTES
| Type No. | Thread (M) | Pitch (P) | Diameter (D, mm) | Flute length (Lc, mm) | Overall length (L, mm) | Shank Dia (d, mm) | Flutes (F) |
|---|---|---|---|---|---|---|---|
| NHCM160P150 | M16 | 1.5 | 12 | 30 | L75 | 12 | 4 |
| NHCM160P150L | M16 | 1.5 | 11.9 | 36 | L83 | 12 | 4 |
| NHCM160P150D | M16 | 1.5 | 13.9 | 33 | L83 | 14 | 4 |
| NHCM160P200 | M16 | 2 | 11.9 | 30 | L75 | 12 | 4 |
| NHCM160P200L | M16 | 2 | 12 | 35 | L83 | 12 | 4 |
| NHCM180P200 | M18 | 2 | 13.9 | 33 | L100 | 14 | 4 |
| NHCM180P250 | M18 | 2.5 | 13.9 | 33 | L100 | 14 | 5 |
| NHCM200P150 | M20 | 1.5 | 15.95 | 40 | L100 | 16 | 5 |
| NHCM200P200 | M20 | 2 | 15.95 | 40 | L100 | 16 | 5 |
| NHCM220P100 | M22 | 1 | 16 | 40 | L100 | 16 | 5 |
| NHCM240P300 | M24 | 3 | 15.9 | 40 | L100 | 16 | 5 |
| NHCM300P350 | M30 | 3.5 | 16 | 40 | L100 | 16 | 5 |
Production Equipment Reference
The photographs below show production equipment and workshop operations used as manufacturing-reference material for carbide tooling enquiries. Process requirements are confirmed for the selected model and order.
Enclosed CNC tool-grinding equipment shown on the workshop floor.
Multi-tank cleaning equipment shown in the workshop.
A row of enclosed CNC grinding machines viewed from the workshop aisle.
Enclosed tool-grinding equipment with an adjacent operator area.
Tool-grinding equipment with a robotic handling enclosure.
Enclosed grinding and robotic-handling equipment shown from another workshop position.
CNC grinding machines arranged along a workshop aisle.
Enclosed tool-coating equipment shown in the production area.
Vacuum-chamber equipment shown in the coating area.
An operator works at an enclosed laser-marking station.
Machine workstations shown in a tool-finishing area.
An operator stands beside tool honing and polishing equipment.
An operator stands beside enclosed edge-honing and polishing equipment.
Enclosed wet-blasting equipment shown in the surface-finishing area.
A second workshop view of enclosed wet-blasting equipment.
Inspection and Measurement Equipment Reference
The photographs below show inspection and measurement equipment used when discussing drawing dimensions and order requirements. The inspection scope is confirmed for the selected order.
Operators work at optical inspection stations.
An operator positions a cutting tool at a profile-measuring station.
Optical measurement workstations shown in the inspection area.
A balancing instrument with a protective enclosure.
A tool presetting station with an optical measuring arm and display.
An optical tool presetter with a measurement display.
Operators inspect tools at camera-based optical workstations.
An operator positions a tool in an enclosed measuring machine.
Frequently Asked Questions
What is a thread mill for hardened materials?
It is a thread-milling cutter offered for applications involving hardened workpieces. Select the model against the specified thread, material condition and machine setup; suitability depends on the individual tool and workpiece.
What hardness range can these thread mills handle?
Provide the workpiece material, heat-treatment condition and actual or specified hardness with your inquiry. A hardness limit for these catalog models has not been established in the available product information, so model suitability needs to be reviewed against the applicable technical information.
Why are pitch and nominal thread size both required?
The nominal size does not identify every possible pitch. Match both fields to the drawing and the selected catalog row so the cutter corresponds to the required thread.
What details help review a hardened blind-hole threading application?
Provide the material grade and hardness, required full-thread depth, bore geometry, thread size and pitch, along with the machine and holder. Model suitability and bottom clearance must be checked for the specific job.
Does flute length equal maximum thread depth?
Not necessarily. Flute length is a cutter dimension. The usable thread depth also depends on the tool profile, feature geometry, holder clearance and programmed tool path.
What should I include in a bulk order request?
Provide the model and quantity per item, thread size and pitch, material grade and hardness, hole and depth details, machine and holder, plus any required samples, labeling or packing instructions.
Request a Quote for Thread Mills for Hardened Materials
Send your NHAM, NHBM or NHCM models and quantities with the thread size and pitch, workpiece grade, heat-treatment condition and specified hardness. Include the hole depth, machine and holder details for model review.