NACHI Milling

NACHI SL2SE Long-Shank Square End Mill (2F)

Name: NACHI SL2SE Long-Shank Square End Mill (2F)
Brand: NACHI

Workpiece material (ISO)

P · SteelM · StainlessN · Non-ferrous

2-flute HSS-Co square end mill for machining steel, stainless steel and non-ferrous metals, with an extended neck/shank for deep reach. Ø3–40 mm in whole-millimetre sizes (38 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, Uncoated

A cobalt-alloyed high-speed-steel body with no coating, across all 38 catalogue sizes.

2-Flute Square End

A fixed 2-flute square-end geometry (the catalogue's own "2F" designation) across the full size range.

Long-Shank Extended Reach

An extended shank (the catalogue's own "Long-Shank" designation) reaching overall lengths up to 210 mm, for deep-pocket milling beyond the standard 2SE line's 160 mm maximum.

Steel, Stainless & Non-Ferrous Coverage

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

Ø3–40 mm, 60–210 mm Overall Length

Diameters run Ø3–40 mm in whole-millimetre steps, with overall lengths from 60 to 210 mm across 38 sizes.

Workpiece material

Material applicability

Steel

Structural steel SS400
○ Suitable
Catalogue mark: ○
Carbon steel S45C/S50C
○ Suitable
Catalogue mark: ○
Alloy steel SCM/SCR
○ Suitable
Catalogue mark: ○

Hardened steel

Pre-hardened steel NAK
○ Suitable
Catalogue mark: ○
High-hardness steel 30–45 HRC
Not marked
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
○ Suitable
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 SL2SE. · Selection Chart pages E-4–E-7

Specifications

Sizes & part numbers

NACHI SL2SE Long-Shank Square End Mill (2F) specifications
ORDER NO.	FLUTES	Ø	FLUTE L	OAL	SHANK	COATING
SL2SE3	2	3 mm	15	60	6	HSSCO
SL2SE4	2	4 mm	20	60	8	HSSCO
SL2SE5	2	5 mm	25	65	8	HSSCO
SL2SE6	2	6 mm	25	65	8	HSSCO
SL2SE7	2	7 mm	35	80	10	HSSCO
SL2SE8	2	8 mm	35	80	10	HSSCO
SL2SE9	2	9 mm	45	95	10	HSSCO
SL2SE10	2	10 mm	45	95	10	HSSCO
SL2SE11	2	11 mm	55	105	12	HSSCO
SL2SE12	2	12 mm	55	105	12	HSSCO
SL2SE13	2	13 mm	55	110	16	HSSCO
SL2SE14	2	14 mm	55	110	16	HSSCO
SL2SE15	2	15 mm	65	120	16	HSSCO
SL2SE16	2	16 mm	65	120	16	HSSCO
SL2SE17	2	17 mm	65	130	20	HSSCO
SL2SE18	2	18 mm	65	130	20	HSSCO
SL2SE19	2	19 mm	75	140	20	HSSCO
SL2SE20	2	20 mm	75	140	20	HSSCO
SL2SE21	2	21 mm	75	140	20	HSSCO
SL2SE22	2	22 mm	75	140	20	HSSCO
SL2SE23	2	23 mm	90	160	25	HSSCO
SL2SE24	2	24 mm	90	160	25	HSSCO
SL2SE25	2	25 mm	90	160	25	HSSCO
SL2SE26	2	26 mm	90	160	25	HSSCO
SL2SE27	2	27 mm	90	160	25	HSSCO
SL2SE28	2	28 mm	90	160	25	HSSCO
SL2SE29	2	29 mm	90	160	25	HSSCO
SL2SE30	2	30 mm	90	160	25	HSSCO
SL2SE31	2	31 mm	105	190	32	HSSCO
SL2SE32	2	32 mm	105	190	32	HSSCO
SL2SE33	2	33 mm	105	190	32	HSSCO
SL2SE34	2	34 mm	105	190	32	HSSCO
SL2SE35	2	35 mm	105	190	32	HSSCO
SL2SE36	2	36 mm	105	190	32	HSSCO
SL2SE37	2	37 mm	125	210	32	HSSCO
SL2SE38	2	38 mm	125	210	32	HSSCO
SL2SE39	2	39 mm	125	210	32	HSSCO
SL2SE40	2	40 mm	125	210	32	HSSCO