Long Shank End Mills

HEH HEI HEJ dimension drawing with original dimension symbols and figure references

Choose Holding Length Without Extending the Cutting Claim

A long shank changes the tool length and setup requirements, but it does not make the entire tool a cutting edge. Compare overall length and flute length independently, then review tool projection and holder clearance.

Separate overall length L from flute length Lc
State the intended holder and tool projection
Check fixture clearance around the holding section
Keep length and flute-count variants on separate order lines

Request a Model-by-Model Quote

Long Shank End Mills — Product Views

Compare the full-tool, working-tip and shank views with the selected series and model. Keep different products separately identifiable when reviewing the available angles.

HEH HEI HEJ — 2 flutes

Catalogue tool profile — 2 flutes

HEH HEI HEJ — 4 flutes

Catalogue tool profile — 4 flutes

DEH DEI DEJ — 2 flutes

Catalogue tool profile — 2 flutes

DEH DEI DEJ — 4 flutes

Catalogue tool profile — 4 flutes

Compare the Listed Series and Configurations

Long shank, long reach and long flute describe different dimensional requirements. Keep the requested holding length separate from the cutting engagement and from clearance behind the working section.

Series	Flutes	Model records
HEH HEI HEJ	2 FLUTES	23
HEH HEI HEJ	4 FLUTES	24
DEH DEI DEJ	2 FLUTES	23
DEH DEI DEJ	4 FLUTES	24

Long Shank End Mills Specifications

Review cutting diameter D, flute length Lc, shank diameter d and overall length L. Use the individual model record and corresponding dimension drawing.

HEH HEI HEJ — 2 flutes

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
HEH0302A	D3	8	L75	4	2
HEH0302	D3	8	L75	6	2
HEH0352A	D3.5	10	L75	4	2
HEH0352	D3.5	10	L75	6	2
HEH0402A	D4	10	L75	4	2
HEH0402	D4	10	L75	6	2
HEH0502Z	D5	13	L75	5	2
HEH0502	D5	13	L75	6	2
HEH0602	D6	15	L75	6	2
HEH0802	D8	20	L75	8	2

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
HEI0402	D4	10	L100	6	2
HEI0502Z	D5	13	L100	5	2
HEI0502	D5	13	L100	6	2
HEI0602	D6	15	L100	6	2
HEI0802	D8	20	L100	8	2
HEI1002	D10	25	L100	10	2
HEI1202	D12	30	L100	12	2

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
HEJ0602	D6	15	L150	6	2
HEJ0802	D8	20	L150	8	2
HEJ1002	D10	30	L150	10	2
HEJ1202	D12	40	L150	12	2
HEJ1602	D16	45	L150	16	2
HEJ2002	D20	50	L150	20	2

HEH HEI HEJ — 4 flutes

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
HEH0304A	D3	8	L75	4	4
HEH0304	D3	8	L75	6	4
HEH0354A	D3.5	10	L75	4	4
HEH0354	D3.5	10	L75	6	4
HEH0404A	D4	10	L75	4	4
HEH0404	D4	10	L75	6	4
HEH0504Z	D5	13	L75	5	4
HEH0504	D5	13	L75	6	4
HEH0604	D6	15	L75	6	4
HEH0804	D8	20	L75	8	4

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
HEI0404A	D4	10	L100	4	4
HEI0404	D4	10	L100	6	4
HEI0504Z	D5	13	L100	5	4
HEI0504	D5	13	L100	6	4
HEI0604	D6	15	L100	6	4
HEI0804	D8	20	L100	8	4
HEI1004	D10	30	L100	10	4
HEI1204	D12	30	L100	12	4

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
HEJ0604	D6	15	L150	6	4
HEJ0804	D8	20	L150	8	4
HEJ1004	D10	30	L150	10	4
HEJ1204	D12	40	L150	12	4
HEJ1604	D16	45	L150	16	4
HEJ2004	D20	50	L150	20	4

DEH DEI DEJ — 2 flutes

DEH DEI DEJ dimension drawing with original dimension symbols and figure references

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
DEH0302A	D3	8	L75	4	2
DEH0302	D3	8	L75	6	2
DEH0352A	D3.5	10	L75	4	2
DEH0352	D3.5	10	L75	6	2
DEH0402A	D4	10	L75	4	2
DEH0402	D4	10	L75	6	2
DEH0502Z	D5	13	L75	5	2
DEH0502	D5	13	L75	6	2
DEH0602	D6	15	L75	6	2
DEH0802	D8	20	L75	8	2

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
DEI0402	D4	10	L100	6	2
DEI0502Z	D5	13	L100	5	2
DEI0502	D5	13	L100	6	2
DEI0602	D6	15	L100	6	2
DEI0802	D8	20	L100	8	2
DEI1002	D10	30	L100	10	2
DEI1202	D12	30	L100	12	2

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
DEJ0602	D6	15	L150	6	2
DEJ0802	D8	20	L150	8	2
DEJ1002	D10	30	L150	10	2
DEJ1202	D12	40	L150	12	2
DEJ1602	D16	45	L150	16	2
DEJ2002	D20	50	L150	20	2

DEH DEI DEJ — 4 flutes

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
DEH0304A	D3	8	L75	4	4
DEH0304	D3	8	L75	6	4
DEH0354A	D3.5	10	L75	4	4
DEH0354	D3.5	10	L75	6	4
DEH0404A	D4	10	L75	4	4
DEH0404	D4	10	L75	6	4
DEH0504Z	D5	13	L75	5	4
DEH0504	D5	13	L75	6	4
DEH0604	D6	15	L75	6	4
DEH0804	D8	20	L75	8	4

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
DEI0404A	D4	10	L100	4	4
DEI0404	D4	10	L100	6	4
DEI0504Z	D5	13	L100	5	4
DEI0504	D5	13	L100	6	4
DEI0604	D6	15	L100	6	4
DEI0804	D8	20	L100	8	4
DEI1004	D10	30	L100	10	4
DEI1204	D12	30	L100	12	4

Model	Cutting Diameter D (mm)	Flute Length Lc (mm)	Overall Length L (mm)	Shank Diameter d (mm)	Flutes
DEJ0604	D6	15	L150	6	4
DEJ0804	D8	20	L150	8	4
DEJ1004	D10	30	L150	10	4
DEJ1204	D12	40	L150	12	4
DEJ1604	D16	45	L150	16	4
DEJ2004	D20	50	L150	20	4

Match the Tool to the Feature and Machine Setup

Working Profile

Select cutting diameter and flute length for the milled feature first. Then choose the overall tool length and holding arrangement needed by the machine setup.

Access and Holding Conditions

Provide the holder type, tool projection and fixture restrictions. A longer shank does not establish a longer relieved neck or a larger permissible depth of cut.

Workpiece and Cutting Conditions

Include the workpiece grade and condition, machining operation, machine and holder, tool projection and chip-removal arrangement. Coating and cutting-parameter requests need the actual application; a series name or tool colour does not establish suitability.

Keep Overall and Cutting Length Separate

The HEH0302A catalogue entry lists overall length L 75 and flute length Lc 8. Use the selected model row to identify the required configuration; do not turn the overall length into a cutting-depth specification.

Prepare the Range for Your Machining Customers

Build the enquiry around the required feature and the model dimensions, whether you are replacing a production tool or planning a distributor assortment.

Feature-Led Selection

Select cutting diameter and flute length for the milled feature first. Then choose the overall tool length and holding arrangement needed by the machine setup.

Replacement Review

Long shank, long reach and long flute describe different dimensional requirements. Keep the requested holding length separate from the cutting engagement and from clearance behind the working section.

Assortments and Reorders

List quantities by full model and keep different flute counts and length variants separately identifiable. Attach the approved drawing or item specification to repeat enquiries rather than relying on a shared product title.

Production Equipment for Long Shank End Mills

Review the equipment alongside the cutting diameter D, flute length Lc, shank diameter d and overall length L required for the selected model. Factory scenes provide context; the ordered geometry and any agreed treatment remain item-specific.

**CNC Tool Grinding Cell**
CNC tool grinding equipment on the workshop floor.
A tool drawing needs a clear definition of the working profile before a grinding setup is evaluated. For HEH HEI HEJ models such as HEH0302A (2 flutes), review end profile, cutting diameter and flute length. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**CNC Grinding Equipment**
A row of enclosed CNC grinding machines.
A multi-model order is easier to review when each cutting diameter remains linked to its own drawing and quantity. The HEH HEI HEJ catalogue list starts with HEH0302A and contains 23 model records with D entries from 3 to 20; use the source drawing to confirm units and applicable limits.

**Tool Grinding Machine**
Enclosed tool-grinding equipment with an operator area alongside.
The relationship between the working edge and the holding section belongs in the dimensional review, not just the overall tool outline. Keep the drawing for HEH0302A and other HEH HEI HEJ models attached to the order's end profile, cutting diameter and flute length requirements. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**Automated Tool Grinding Cell**
A tool-grinding machine with a robotic handling enclosure.
For a repeat-order programme, keep the approved model and drawing revision together; an automated handling scene does not establish a tolerance guarantee. In the HEH HEI HEJ range, use HEH0302A as a model reference when checking end profile, cutting diameter and flute length against the part requirement.

**Automated Grinding Equipment**
Tool-grinding machines with enclosed robotic handling equipment.
When several geometries appear in one enquiry, separate the item records so the selected cutting profile remains identifiable throughout the order discussion. The HEH HEI HEJ catalogue list starts with HEH0302A and contains 23 model records with D entries from 3 to 20; use the source drawing to confirm units and applicable limits.

**CNC Grinding Machines**
Enclosed CNC grinding equipment arranged along the workshop aisle.
Compare the required cutting section and clearance envelope when reviewing production requirements; the workshop overview is context for that discussion. Select HEH0302A or another HEH HEI HEJ model against the flat-bottomed feature or side-milling task.

**Cleaning Equipment**
A multi-tank cleaning line in the tool production workshop.
Surface cleanliness matters when reviewing a cutting edge or a proposed surface treatment. Specify the condition required for inspection rather than assuming one cleaning cycle suits every tool. Keep the drawing for HEH0302A and other HEH HEI HEJ models attached to the order's end profile, cutting diameter and flute length requirements. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**Tool Finishing Workstations**
Machine workstations in the tool-finishing area.
The final working profile should be compared with the ordered geometry. Any finishing requirement needs to preserve the dimensions that define the selected tool. In the HEH HEI HEJ range, use HEH0302A as a model reference when checking end profile, cutting diameter and flute length against the part requirement.

**Cutting-Edge Preparation Equipment**
An operator beside a tool honing and polishing machine.
Edge preparation is a specification decision, not an automatic requirement. Discuss whether an edge treatment is appropriate for the selected geometry before adding it to an order. For HEH HEI HEJ models such as HEH0302A (2 flutes), review end profile, cutting diameter and flute length.

**Edge Honing and Polishing Equipment**
An operator beside enclosed tool honing equipment.
Where an edge treatment is requested, define the condition to be assessed without changing the intended cutting profile. This equipment view does not establish a treatment for every model. Select HEH0302A or another HEH HEI HEJ model against the flat-bottomed feature or side-milling task. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**Wet-Blasting Equipment**
Enclosed wet-blasting equipment in the surface-finishing area.
Wet blasting is shown as workshop equipment. Include it in a tool specification only when an applicable surface-treatment requirement has been agreed; it is not a default step for this range. Keep the drawing for HEH0302A and other HEH HEI HEJ models attached to the order's end profile, cutting diameter and flute length requirements.

**Wet-Blasting Equipment — Additional View**
An alternate image of enclosed wet-blasting equipment.
Use this additional equipment view as factory context. Whether a surface-treatment route is appropriate depends on the ordered tool and its acceptance requirements, not on the presence of a machine photograph. In the HEH HEI HEJ range, use HEH0302A as a model reference when checking end profile, cutting diameter and flute length against the part requirement. Preserve the specified end profile, cutting diameter and flute length when discussing any optional treatment for HEH HEI HEJ.

**Tool Coating Equipment**
An enclosed tool-coating unit in the workshop.
Choose any coating against the workpiece and the selected tool geometry. Equipment photographs do not identify the coating chemistry or prove a hardness or tool-life rating. For HEH HEI HEJ models such as HEH0302A (2 flutes), review end profile, cutting diameter and flute length.

**Coating-Area Equipment**
Vacuum-chamber equipment in the coating area.
A surface-treatment enquiry should identify the selected model and required finish. Keep the coating requirement separate from dimensional acceptance and from unverified performance claims. Select HEH0302A or another HEH HEI HEJ model against the flat-bottomed feature or side-milling task.

**Laser-Marking Station**
An operator working at an enclosed laser-marking station.
State the identification and label information required for the order. Any requested tool marking must be reviewed for the available non-cutting area rather than assumed suitable for every tool size. Keep the drawing for HEH0302A and other HEH HEI HEJ models attached to the order's end profile, cutting diameter and flute length requirements. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

Inspection Equipment and Acceptance Requirements

Build the inspection request around cutting diameter D, flute length Lc, shank diameter d and overall length L. Define the measurement features and limits for the selected drawing. Installed runout and balance are separate from a dimensional or visual check.

**Tool Inspection Room**
Operators working at optical inspection and tool-measuring stations.
A useful acceptance plan identifies the tool features to measure, the required limits and the applicable drawing revision. The inspection-area view does not establish a particular test result. The HEH HEI HEJ catalogue list starts with HEH0302A and contains 23 model records with D entries from 3 to 20; use the source drawing to confirm units and applicable limits.

Cutting-Tool Profile Measurement

An operator positioning a cutting tool at a profile-measuring station.

Profile review should follow the actual working geometry and the dimension definitions on its drawing. Define the feature being assessed before comparing measurements or accepting a sample. For HEH HEI HEJ models such as HEH0302A (2 flutes), review end profile, cutting diameter and flute length. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**Measurement Workstations**
Optical measuring workstations in the inspection area.
Keep cutting dimensions, holding dimensions and length definitions separate in the inspection request. A measurement image is supporting context, not a substitute for an item-linked result. The HEH HEI HEJ catalogue list starts with HEH0302A and contains 23 model records with D entries from 3 to 20; use the source drawing to confirm units and applicable limits.

**Tool Presetting and Dimensional Review**
A tool presetter with an optical measuring arm and display.
Tool presetting supports a discussion of length and visible profile. Assess installed runout separately with the agreed holder, projection, position and method; this image alone does not prove runout capability. Keep the drawing for HEH0302A and other HEH HEI HEJ models attached to the order's end profile, cutting diameter and flute length requirements. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**Optical Tool Presetter**
An optical tool presetter and measurement display.
Agree the dimensional datum and measurement position before comparing presetting information. Overall length, cutting length and installed projection describe different aspects of a tool setup. In the HEH HEI HEJ range, use HEH0302A as a model reference when checking end profile, cutting diameter and flute length against the part requirement.

**Tool Measurement Setup**
An operator setting a tool in an enclosed measuring machine.
Identify the selected tool and the drawing features that need checking. Machine appearance alone cannot establish an inspection resolution, a tolerance limit or a completed result for that item. For HEH HEI HEJ models such as HEH0302A (2 flutes), review end profile, cutting diameter and flute length. The longer holding section is not a longer cutting edge; specify projection and fixture clearance separately.

**Optical Inspection Workstations**
Operators inspecting tools at camera-based inspection workstations.
Define which cutting-edge and tip features need visual review and what constitutes an unacceptable defect. Use a suitable view of the working section rather than judging it from a full-tool photograph. Select HEH0302A or another HEH HEI HEJ model against the flat-bottomed feature or side-milling task.

**Balancing Instrument**
A balancing instrument with a protective enclosure.
Balancing equipment is shown as factory context. Balance and runout are different assessments; do not treat this photograph as proof that an individual cutter has been balanced or that its cutting diameter is within tolerance. Keep the drawing for HEH0302A and other HEH HEI HEJ models attached to the order's end profile, cutting diameter and flute length requirements. For HEH HEI HEJ, any balance requirement needs its own assembly definition and acceptance basis.

Prepare a Clear Quote and Reorder List

Use one line for each series, model and quantity. For a trial order, describe the machining result you need to assess. For a repeat order, include the approved item or drawing revision so the enquiry identifies the same tool.

List the complete model code, quantity per model and any required dimensional tolerances.
Provide the workpiece, machining operation and machine or holder details for application review.
State individual tool protection, label information and outer-pack requirements in the enquiry.
Include the destination, required delivery date and any private-label or documentation requirements.

Include the selected model and quantity on each line of the enquiry. Where the same family appears with different flute counts or lengths, retain the complete code and drawing reference.

Request price, packing, order quantity and lead time for the actual model mix. State any marking, individual tool protection and documentation requirements with the enquiry.

Long Shank End Mills Purchasing FAQ

What is the difference between a long shank and a long reach end mill?

A long shank concerns the longer tool or holding section; a long reach requirement concerns access behind the cutting section. Review the actual geometry rather than the label alone. The listed HEH, HEI, HEJ and DE-family records must be compared by their own dimensions.

Does a 75 mm overall length mean 75 mm of cutting edge?

No. Overall length includes the cutting and non-cutting portions of the tool. For example, the HEH0302A catalogue record lists L 75 and Lc 8; those are different fields. Always use the individual row rather than assigning the full length as cutting depth.

How should holder projection be specified for a long shank cutter?

Provide the holder or collet, intended projection and the part or fixture obstruction driving the length requirement. Keep the required holding engagement distinct from the exposed section. A long overall length does not by itself establish a suitable or interference-free setup.

Are the two-flute and four-flute HEH or DEH versions interchangeable?

Retain the full model code and compare the actual cutting dimensions and flute count. The shared family letters are not an application approval. Review workpiece, engagement and chip-removal requirements before replacing one configuration with another.

Can a longer shank be selected without reviewing rigidity and installed runout?

The installed setup needs its own assessment. Record projection, holder and measurement conditions together with the part requirement. A photograph of the tool or its overall length does not establish a runout limit or the behaviour of the assembled system.

What information prevents a length mismatch in a long shank quotation?

Include the complete model, D, Lc, d and L, with quantity for each length and flute-count variant. Add the drawing or approved replacement reference. State the required holder and projection where the longer tool is intended to clear a fixture or reach a restricted position.

Request a Quote for Long Shank End Mills

Send the complete model list and quantities, or provide your tool and part drawings. Include the workpiece, operation, machine and holder, dimensional requirements and destination.

Explore the Carbide Cutting Tools Range →

Choose Holding Length Without Extending the Cutting Claim

Long Shank End Mills — Product Views

HEH HEI HEJ — 2 flutes

HEH HEI HEJ — 4 flutes

DEH DEI DEJ — 2 flutes

DEH DEI DEJ — 4 flutes

Compare the Listed Series and Configurations

Long Shank End Mills Specifications

HEH HEI HEJ — 2 flutes

HEH HEI HEJ — 4 flutes

DEH DEI DEJ — 2 flutes

DEH DEI DEJ — 4 flutes

Match the Tool to the Feature and Machine Setup

Working Profile

Access and Holding Conditions

Workpiece and Cutting Conditions

Keep Overall and Cutting Length Separate

Prepare the Range for Your Machining Customers

Feature-Led Selection

Replacement Review

Assortments and Reorders

Production Equipment for Long Shank End Mills

Inspection Equipment and Acceptance Requirements

Prepare a Clear Quote and Reorder List

Long Shank End Mills Purchasing FAQ

Request a Quote for Long Shank End Mills

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