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Harvey Tool Miniature Square End Mills — Long Reach, Standard Flute — Metric

Name: Harvey Tool Miniature Square End Mills — Long Reach, Standard Flute — Metric — 677657-C3 · 3.000 mm · 4FL · C3
Brand: Harvey Tool
SKU: 677657-C3

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Solid-carbide miniature square end mills with long reach, standard flute geometry in metric sizes.

SKU: 677657-C3

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Technical Specifications

Tool configurations

Article ID	Configuration	Cutter Diameter D1	Length of Cut L2	Overall Reach L3	Reach Multiple	Shank Diameter D2	Overall Length L1	Flutes	Coating	Profile	Coating / flute offering	Manufacturer material recommendations	Dimensional tolerances
677711	677711 · 0.500 mm · 4FL · UN	0.500 mm	1.500 mm	2.500 mm	(5x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677711-C3	677711-C3 · 0.500 mm · 4FL · C3	0.500 mm	1.500 mm	2.500 mm	(5x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677611	677611 · 0.500 mm · 4FL · UN	0.500 mm	1.500 mm	4.000 mm	(8x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677611-C3	677611-C3 · 0.500 mm · 4FL · C3	0.500 mm	1.500 mm	4.000 mm	(8x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677722	677722 · 1.000 mm · 4FL · UN	1.000 mm	3.000 mm	5.000 mm	(5x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677722-C3	677722-C3 · 1.000 mm · 4FL · C3	1.000 mm	3.000 mm	5.000 mm	(5x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677622	677622 · 1.000 mm · 4FL · UN	1.000 mm	3.000 mm	8.000 mm	(8x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677622-C3	677622-C3 · 1.000 mm · 4FL · C3	1.000 mm	3.000 mm	8.000 mm	(8x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677733	677733 · 1.500 mm · 4FL · UN	1.500 mm	4.500 mm	7.500 mm	(5x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677733-C3	677733-C3 · 1.500 mm · 4FL · C3	1.500 mm	4.500 mm	7.500 mm	(5x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677633	677633 · 1.500 mm · 4FL · UN	1.500 mm	4.500 mm	12.000 mm	(8x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677633-C3	677633-C3 · 1.500 mm · 4FL · C3	1.500 mm	4.500 mm	12.000 mm	(8x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677745	677745 · 2.000 mm · 4FL · UN	2.000 mm	6.000 mm	10.000 mm	(5x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677745-C3	677745-C3 · 2.000 mm · 4FL · C3	2.000 mm	6.000 mm	10.000 mm	(5x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677645	677645 · 2.000 mm · 4FL · UN	2.000 mm	6.000 mm	16.000 mm	(8x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677645-C3	677645-C3 · 2.000 mm · 4FL · C3	2.000 mm	6.000 mm	16.000 mm	(8x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677757	677757 · 3.000 mm · 4FL · UN	3.000 mm	9.000 mm	15.000 mm	(5x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677757-C3	677757-C3 · 3.000 mm · 4FL · C3	3.000 mm	9.000 mm	15.000 mm	(5x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677657	677657 · 3.000 mm · 4FL · UN	3.000 mm	9.000 mm	24.000 mm	(8x)	3.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677657-C3	677657-C3 · 3.000 mm · 4FL · C3	3.000 mm	9.000 mm	24.000 mm	(8x)	3.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.020 mm; LENGTH OF CUT · L2+.250 mm-.000 mm; OVERALL REACH · L3+.250 mm-.000 mm
677761	677761 · 4.000 mm · 4FL · UN	4.000 mm	12.000 mm	20.000 mm	(5x)	4.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677761-C3	677761-C3 · 4.000 mm · 4FL · C3	4.000 mm	12.000 mm	20.000 mm	(5x)	4.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677661	677661 · 4.000 mm · 4FL · UN	4.000 mm	12.000 mm	32.000 mm	(8x)	4.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677661-C3	677661-C3 · 4.000 mm · 4FL · C3	4.000 mm	12.000 mm	32.000 mm	(8x)	4.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677766	677766 · 6.000 mm · 4FL · UN	6.000 mm	18.000 mm	30.000 mm	(5x)	6.000 mm	63.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677766-C3	677766-C3 · 6.000 mm · 4FL · C3	6.000 mm	18.000 mm	30.000 mm	(5x)	6.000 mm	63.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677666	677666 · 6.000 mm · 4FL · UN	6.000 mm	18.000 mm	48.000 mm	(8x)	6.000 mm	100.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677666-C3	677666-C3 · 6.000 mm · 4FL · C3	6.000 mm	18.000 mm	48.000 mm	(8x)	6.000 mm	100.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677770	677770 · 8.000 mm · 4FL · UN	8.000 mm	24.000 mm	40.000 mm	(5x)	8.000 mm	100.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677770-C3	677770-C3 · 8.000 mm · 4FL · C3	8.000 mm	24.000 mm	40.000 mm	(5x)	8.000 mm	100.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677670	677670 · 8.000 mm · 4FL · UN	8.000 mm	24.000 mm	64.000 mm	(8x)	8.000 mm	100.000 mm	4	UN	Square	UNCOATED · 4FL	Non-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm
677670-C3	677670-C3 · 8.000 mm · 4FL · C3	8.000 mm	24.000 mm	64.000 mm	(8x)	8.000 mm	100.000 mm	4	C3	Square	AlTiN COATED · 4FL	Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, Composites	CUTTER DIA. · D1+.000 mm-.040 mm; LENGTH OF CUT · L2+.750 mm-.000 mm; OVERALL REACH · L3+.750 mm-.000 mm

Technical documents

Harvey Tool speeds & feeds — 677600

PDF · English

Harvey Tool speeds & feeds — 677600 (PDF)

Compare With Similar Items

Product	Harvey Tool Miniature Square End Mills — Long Reach, Standard Flute — Metric View details	Harvey Tool Miniature Square End Mills — Stub & Standard — Metric View details
Description	Solid-carbide miniature square end mills with long reach, standard flute geometry in metric sizes.	Solid-carbide miniature square end mills with stub & standard geometry in metric sizes.
Price	Pricing by quote	Pricing by quote

Technical guidance & FAQs

Applications and materials

Harvey Tool metric long-reach miniature square end mills are for small recessed milling features that need access beyond the cutting section. The solid-carbide, center-cutting family supports slotting, plunging and roughing. Four-flute uncoated and AlTiN offerings pair metric dimensions and tolerances with different material recommendations.

Choosing a configuration

Match cutter diameter and required overall reach to the feature, then check the separate flute length and metric shank diameter. Confirm overall length allows the necessary holder engagement without treating extra projection as usable cutting length.

Compatibility and use

Use the exact metric tool number to retain its coating, reach and tolerance combination. Choose the workpiece recommendation and speeds and feeds sheet for that tool. A standard flute length with extended reach should not be programmed as though the full reach were fluted.

Technical documents

Choose the speeds and feeds sheet for your exact tool number and coating; the linked sheets cover different configurations in this family.

Harvey Tool speeds & feeds — 677700 (PDF)

Harvey Tool speeds & feeds — 677600 (PDF)

What does long reach add to a miniature square end mill?

It provides access to recessed features beyond the flute section. The separate overall-reach and length-of-cut dimensions describe different parts of the tool.

Is the metric family four flute?

The metric offering lists four-flute uncoated and AlTiN-coated tools. Check the exact dimensions and coating in the selected row.

Can I substitute a similar inch tool?

Check the manufacturer tool number and all dimensions first. This family has metric dimensions and tolerances, so a nearby inch diameter is not an exact replacement.

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Quick links

Harvey Tool Miniature Square End Mills — Long Reach, Standard Flute — Metric