(G9A42) K-2 Carbide, Multi Flute Roughing End Mill, Long Length, Flat Shank (Coarse)

Name: (G9A42) K-2 Carbide, Multi Flute Roughing End Mill, Long Length, Flat Shank (Coarse)
Brand: Excision Pty Ltd
SKU: G9A42120
Price: 53.60 AUD
Availability: InStock

X-Coated Carbide Coarse Roughing End Mill

$140.47 INC GST $127.70 EX GST Price available on request

SKU: G9A42120

Work materials

P M K N S H

Key features

X-coated solid carbide construction
Coarse long-length roughing geometry
Fast chip ejection for dry high-temperature milling

Mill Diameter (mm)

Chamfer (mm)

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Dry milling capability

Suitable for dry milling applications at high temperatures.

Rapid chip evacuation

Coarse roughing geometry supports fast chip ejection.

Useful diameter range

Available from 6 to 25 mm with three, four or five flutes.

SKU	Mill Diameter (mm)	Chamfer (mm)	Overall length (mm)	Shank dia. (mm)	Flutes	Length of cut (mm)	Stock	Price
G9A42060	6.0	0.6	57.0	6.0	3	16.0	In stock	$53.60
G9A42080	8.0	0.6	63.0	8.0	3	16.0	Low stock	$64.60
G9A42100	10.0	0.6	72.0	10.0	4	22.0	In stock	$96.50
G9A42120	12.0	0.74	83.0	12.0	4	26.0	In stock	$127.70
G9A42140	14.0	0.94	83.0	14.0	4	26.0	1-2 Weeks	$155.70
G9A42160	16.0	0.94	92.0	16.0	4	32.0	In stock	$196.80
G9A42180	18.0	0.94	92.0	18.0	4	32.0	1-2 Weeks	$261.90
G9A42200	20.0	0.94	104.0	20.0	4	38.0	1-2 Weeks	$290.30
G9A42250	25.0	0.94	121.0	25.0	5	45.0	1-2 Weeks	$412.70

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Overview
Specifications
Work Material
Speeds & Feeds
Reviews

Application

Product Description

YG-1 G9A42 is an X-coated solid-carbide, long-length coarse roughing end mill with a flat shank. Designed for high-temperature dry milling, it combines coarse roughing geometry with fast chip ejection. The multi-flute design provides three, four or five flutes according to diameter. Its enforced cutting edge and listed chamfer provide a strengthened edge configuration. Available diameters span 6 to 25 mm, with matching flat-shank diameters. Long-length overall dimensions range from 57 to 121 mm throughout the series. It suits operations requiring dry milling and rapid chip evacuation at elevated temperatures. Solid carbide construction provides the tool material specified for the complete series.

X-coated solid carbide construction
Coarse long-length roughing geometry
Fast chip ejection for dry high-temperature milling
Flat shank configuration
Three to five flutes across 6 to 25 mm diameters
Enforced cutting edge with chamfer

Product Data

Cutting Shape	Rougher
Length	Long

Work materials

VDI 3323 recommendations for this tool.

ExcellentGood

Steel

11 grades

Non-alloy steel

ExcellentVDI 1–5

Low-alloy steel

ExcellentVDI 6–9

High-alloy and tool steel

ExcellentVDI 10–11

Cast iron

6 grades

Grey cast iron

GoodVDI 15–16

Nodular cast iron

GoodVDI 17–18

Malleable cast iron

GoodVDI 19–20

Superalloys & titanium

7 grades

Heat-resistant superalloys

GoodVDI 31–35

Titanium alloys

GoodVDI 36–37

Stainless steel

3 grades

Stainless steel

GoodVDI 12–14

Non-ferrous materials

9 grades

Wrought aluminium

GoodVDI 21–22

Cast aluminium

GoodVDI 23–25

Copper, bronze and brass

GoodVDI 26–28

Non-metallic materials

GoodVDI 29

Hardened materials

1 grade

Chilled cast iron

GoodVDI 40

VDI grade reference37 grades

Individual grade ratings and nominal hardness references. Base grades and decimal subgrades are listed separately.

Recommended VDI grades and nominal hardness references
VDI	Work material	Recommendation	HB ref.	HRC ref.
1	PNon-alloy steel	Excellent	125	-
2	PNon-alloy steel	Excellent	190	13
3	PNon-alloy steel	Excellent	250	25
4	PNon-alloy steel	Excellent	270	28
5	PNon-alloy steel	Excellent	300	32
6	PLow-alloy steel	Excellent	180	10
7	PLow-alloy steel	Excellent	275	29
8	PLow-alloy steel	Excellent	300	32
9	PLow-alloy steel	Excellent	350	38
10	PHigh-alloy and tool steel	Excellent	200	15
11	PHigh-alloy and tool steel	Excellent	325	35
12	MStainless steel	Good	200	15
13	MStainless steel	Good	240	23
14	MStainless steel	Good	180	10
15	KGrey cast iron	Good	180	10
16	KGrey cast iron	Good	260	26
17	KNodular cast iron	Good	160	3
18	KNodular cast iron	Good	250	25
19	KMalleable cast iron	Good	130	-
20	KMalleable cast iron	Good	230	21
21	NWrought aluminium	Good	60	-
22	NWrought aluminium	Good	100	-
23	NCast aluminium	Good	75	-
24	NCast aluminium	Good	90	-
25	NCast aluminium	Good	130	-
26	NCopper, bronze and brass	Good	110	-
27	NCopper, bronze and brass	Good	90	-
28	NCopper, bronze and brass	Good	100	-
29	NNon-metallic materials	Good	-	-
31	SHeat-resistant superalloys	Good	200	15
32	SHeat-resistant superalloys	Good	280	30
33	SHeat-resistant superalloys	Good	250	25
34	SHeat-resistant superalloys	Good	350	38
35	SHeat-resistant superalloys	Good	320	34
36	STitanium alloys	Good	-	-
37	STitanium alloys	Good	-	-
40	HChilled cast iron	Good	400	42

HB and HRC values are nominal catalogue references. Grade subdivisions can vary between catalogues.

Recommendations apply to the listed VDI grades. Unlisted grades have no stated recommendation.

Cutting Speeds and Feeds

Select the operation, workpiece material and tool diameter to calculate the recommended cutting parameters for this product.

Choose the machining conditions below, then calculate the recommended spindle speed and feed rate.

ISO	VDI 3323	Material Description	Ae	Ap	Parameter	Diameter (Ø)
ISO	VDI 3323	Material Description	Ae	Ap	Parameter	6.0	8.0	10.0	12.0	14.0	16.0	18.0	20.0	25.0
P	1-4	Non-Alloy Steel	0.3D	1.5D	Vc	250	250	245	255	255	255	250	260	285
					fz	0.05	0.067	0.063	0.075	0.088	0.1	0.112	0.112	0.1
					RPM	13263	9947	7799	6764	5798	5073	4421	4138	3629
					FEED	1989	1999	1965	2029	2041	2029	1981	1854	1814
	5		0.3D	1.5D	Vc	200	195	205	190	195	205	210	190	210
					fz	0.022	0.023	0.028	0.033	0.04	0.04	0.041	0.039	0.039
					RPM	10610	7759	6525	5040	4434	4078	3714	3024	2674
					FEED	700	535	731	665	709	653	609	472	521
	6-7	Low-Alloy Steel	0.3D	1.5D	Vc	250	250	245	255	255	255	250	260	285
					fz	0.05	0.067	0.063	0.075	0.088	0.1	0.112	0.112	0.1
					RPM	13263	9947	7799	6764	5798	5073	4421	4138	3629
					FEED	1989	1999	1965	2029	2041	2029	1981	1854	1814
	8-9		0.3D	1.5D	Vc	200	195	205	190	195	205	210	190	210
					fz	0.022	0.023	0.028	0.033	0.04	0.04	0.041	0.039	0.039
					RPM	10610	7759	6525	5040	4434	4078	3714	3024	2674
					FEED	700	535	731	665	709	653	609	472	521
	10	High-Alloyed Steel, and Tool Steel	0.3D	1.5D	Vc	250	250	245	255	255	255	250	260	285
					fz	0.05	0.067	0.063	0.075	0.088	0.1	0.112	0.112	0.1
					RPM	13263	9947	7799	6764	5798	5073	4421	4138	3629
					FEED	1989	1999	1965	2029	2041	2029	1981	1854	1814
	11.1-11.2		0.3D	1.5D	Vc	200	195	205	190	195	205	210	190	210
					fz	0.022	0.023	0.028	0.033	0.04	0.04	0.041	0.039	0.039
					RPM	10610	7759	6525	5040	4434	4078	3714	3024	2674
					FEED	700	535	731	665	709	653	609	472	521
M	14.1	Stainless steel	0.3D	1.5D	Vc	135	135	135	135	135	140	130	130	145
					fz	0.022	0.022	0.028	0.034	0.039	0.038	0.039	0.038	0.038
					RPM	7162	5371	4297	3581	3069	2785	2299	2069	1846
					FEED	473	355	481	487	479	423	359	314	351
S	31-35	Heat Resistant Super Alloys	0.5D	1.0D	Vc	60	55	60	55	60	55	55	55	60
					fz	0.008	0.013	0.017	0.026	0.035	0.044	0.064	0.093	0.115
					RPM	19099	11671	9549	5836	4775	3501	2918	2188	1910
					FEED	458	455	487	455	501	462	560	611	659
H	40	Chilled Cast Iron	0.3D	1.5D	Vc	200	195	205	190	195	205	210	190	210
					fz	0.022	0.023	0.028	0.033	0.04	0.04	0.041	0.039	0.039
					RPM	10610	7759	6525	5040	4434	4078	3714	3024	2674
					FEED	700	535	731	665	709	653	609	472	521

Recommended parameters

Recommended cutting speeds and feeds
Parameter	Value	Unit
Spindle speed	–	rev/min
Feed rate	–	mm/min
Cutting speed (Vc)	–	m/min
Feed per tooth (fz)	–	mm/tooth

Choose your options and calculate the recommended parameters.

Resources

Understanding the Basics of Endmills

Endmills are indispensable tools in machining, renowned for their versatility and precision. Whether you’re a seasoned operator or new to machining, understanding...

January 21, 2025

Connor Urquhart

Article

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(G9A42) K-2 Carbide, Multi Flute Roughing End Mill, Long Length, Flat Shank (Coarse)