NACHI Milling

NACHI AGREL Roughing End Mill (4/5/6F)

Name: NACHI AGREL Roughing End Mill (4/5/6F)
Brand: NACHI

Workpiece material (ISO)

P · SteelM · StainlessN · Non-ferrous

4/5/6-flute HSS-Co square end mill for machining steel, stainless steel and non-ferrous metals, for high-efficiency roughing. AG (AlCrN) coating, Ø6–50 mm (19 catalogue items). Ships in a single coating option. Part of NACHI's milling tool range.

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Features & uses

Engineered for performance

HSS-Co Substrate, AG (AlCrN) Coating

A cobalt-alloyed high-speed-steel body under NACHI's AG family (AlCrN) coating, across all 19 catalogue sizes.

4/5/6-Flute Roughing Geometry

A 3-way flute-count choice (4F/5F/6F) under the catalogue's own "Roughing" designation, for high material-removal-rate cuts — the AlCrN-coated counterpart to the SRE (uncoated) line.

Steel, Stainless & Non-Ferrous Coverage

Rated for ISO P (steel), M (stainless steel) and N (non-ferrous metal) material groups.

Ø6–50 mm, 80–250 mm Overall Length

Diameters run Ø6–50 mm, with overall lengths from 80 to 250 mm across 19 sizes.

High-Efficiency Roughing

The catalogue's own "Roughing" line name signals this end mill is purpose-built for bulk stock removal, not finishing passes.

Workpiece material

Material applicability

Steel

Structural steel SS400
◎ Best fit
Catalogue mark: ◎
Carbon steel S45C/S50C
◎ Best fit
Catalogue mark: ◎
Alloy steel SCM/SCR
◎ Best fit
Catalogue mark: ◎

Hardened steel

Pre-hardened steel NAK
◎ Best fit
Catalogue mark: ◎
High-hardness steel 30–45 HRC
○ Suitable
Catalogue mark: ○
High-hardness steel 45–55 HRC
Excluded
Catalogue mark: ×
High-hardness steel 55–60 HRC
Excluded
Catalogue mark: ×
High-hardness steel 60–66 HRC
Excluded
Catalogue mark: ×

Stainless steel

Stainless steel SUS304/316
◎ Best fit
Catalogue mark: ◎

Cast iron

Cast iron FC/FCD
○ Suitable
Catalogue mark: ○

Non-ferrous

Aluminum alloy AC/ADC
○ Suitable
Catalogue mark: ○
Copper Cu
○ Suitable
Catalogue mark: ○

Source: Catalogue · NACHI 2003-29 catalogue HSS End Mill Selection Chart, visually reviewed for AGREL. · Selection Chart pages E-4–E-7

Specifications

Sizes & part numbers

NACHI AGREL Roughing End Mill (4/5/6F) specifications
ORDER NO.	FLUTES	Ø	FLUTE L	OAL	SHANK	COATING
AGREL6	4	6 mm	26	80	6	AlCr (AG)
AGREL8	4	8 mm	35	90	8	AlCr (AG)
AGREL10	4	10 mm	45	100	10	AlCr (AG)
AGREL12	4	12 mm	53	110	12	AlCr (AG)
AGREL14	4	14 mm	53	110	12	AlCr (AG)
AGREL15	4	15 mm	53	125	16	AlCr (AG)
AGREL16	4	16 mm	63	125	16	AlCr (AG)
AGREL18	4	18 mm	63	125	16	AlCr (AG)
AGREL20	5	20 mm	75	140	20	AlCr (AG)
AGREL22	5	22 mm	75	140	20	AlCr (AG)
AGREL24	5	24 mm	90	160	20	AlCr (AG)
AGREL25	5	25 mm	90	160	25	AlCr (AG)
AGREL28	5	28 mm	90	160	25	AlCr (AG)
AGREL30	5	30 mm	106	180	25	AlCr (AG)
AGREL32	6	32 mm	106	180	32	AlCr (AG)
AGREL35	6	35 mm	106	180	32	AlCr (AG)
AGREL40	6	40 mm	125	200	32	AlCr (AG)
AGREL45	6	45 mm	125	230	42	AlCr (AG)
AGREL50	6	50 mm	150	250	42	AlCr (AG)