(G9D69) 4G Mill, X-Speed rougher, 4&5Flute Multiple Helix Corner Radius Roughing End Mill, Long Reac

Long-Reach Corner Radius Roughing End Mill

YG-1 G9D69 official product photograph · transparent
$123.20 INC GST $112.00 EX GST
SKU
G9D69060
Work materials
PMKN

Key features

  • Carbide long-reach corner-radius roughing end mill
  • Multiple helix and fine-pitch flute geometry
  • Unique flute design for chip evacuation and vibration reduction
Mill Diameter (mm)
Corner Radius (mm)
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Designed for heavy roughing

Fine-pitch roughing geometry supports high-feed, heavy-cutting applications while reducing cutting forces.

Improves chip control

The unique flute design promotes chip evacuation and helps reduce vibration during roughing.

Supports cavity machining

Strong end teeth support plunge and pocket milling alongside long-reach roughing work.

SKUMill Diameter (mm)Corner Radius (mm)Overall length (mm)Shank dia. (mm)FlutesLength of cut (mm)Length below shank (mm)Stock Price Qty Add
G9D690606.0R0.5057.06.049.018.0 1-2 Weeks $112.00
G9D690808.0R0.5063.08.0412.024.0 1-2 Weeks $126.60
G9D6910010.0R0.5072.010.0415.030.0 1-2 Weeks $186.80
G9D6912012.0R0.5083.012.0418.036.0 1-2 Weeks $261.00
G9D6916016.0R1.092.016.0524.048.0 1-2 Weeks $370.80
G9D6920020.0R1.0104.020.0530.060.0 1-2 Weeks $722.50

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  • Overview
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  • Work Material
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Product Description

YG-1 G9D69 X-Speed Rougher is a carbide long-reach corner-radius roughing end mill with flat shank. Its multiple-helix, fine-pitch geometry supports high-feed heavy cutting and reduces cutting forces. Unique flute design assists chip evacuation and vibration reduction during roughing, plunge, and pocket milling. The strong end tooth design supports stable plunging and pocket milling operations. Series variants cover 6–20 mm diameters, R0.5–R1.0 corner radii, and four or five flutes.

The 6–12 mm sizes use four flutes, while 16 mm and 20 mm sizes use five. This X-Speed Rougher family suits machinists requiring a long-reach carbide tool for demanding roughing operations. Flat-shank variants provide the G9D69 option within YG-1’s X-Speed corner-radius roughing range.

  • Carbide long-reach corner-radius roughing end mill
  • Multiple helix and fine-pitch flute geometry
  • Unique flute design for chip evacuation and vibration reduction
  • Strong end tooth design for plunge and pocket milling
  • Flat-shank G9D69 variants from 6–20 mm diameter
  • Four flutes from 6–12 mm and five flutes at 16–20 mm
Product Data
Cutting Shape Corner Radius
Length Long, Long Reach
No. Flutes 5
EDP No. Radius Mill Diameter ShankDia Length of Cut Length Below Shank Overall Length Mill Dia. Tolerance Shank Dia. Tolerance No. of Flute G9D69060 R0.50 6 6 9 18 57 0~-0.050 h5 4 G9D69060 R0.50 6 6 9 18 57 0~-0.050 h5 4 G9D69080 R0.50 8 8 12 24 63 0~-0.050 h5 4 G9D69080 R0.50 8 8 12 24 63 0~-0.050 h5 4 G9D69100 R0.50 10 10 15 30 72 0~-0.050 h5 4 G9D69100 R0.50 10 10 15 30 72 0~-0.050 h5 4 G9D69120 R0.50 12 12 18 36 83 0~-0.050 h5 4 G9D69120 R0.50 12 12 18 36 83 0~-0.050 h5 4 G9D69160 R1.0 16 16 24 48 100 0~-0.050 h5 5 G9D69160 R1.0 16 16 24 48 100 0~-0.050 h5 5 G9D69200 R1.0 20 20 30 60 110 0~-0.050 h5 5 G9D69200 R1.0 20 20 30 60 110 0~-0.050 h5 5

Work materials

VDI 3323 recommendations for this tool.

ExcellentGood

Steel

11 grades
Non-alloy steel
ExcellentVDI 3–5
GoodVDI 1–2
Low-alloy steel
ExcellentVDI 7–9
GoodVDI 6
High-alloy and tool steel
ExcellentVDI 11
GoodVDI 10

Cast iron

6 grades
Grey cast iron
ExcellentVDI 15–16
Nodular cast iron
ExcellentVDI 17–18
Malleable cast iron
ExcellentVDI 19–20

Stainless steel

3 grades
Stainless steel
GoodVDI 12–14

Non-ferrous materials

3 grades
Copper, bronze and brass
GoodVDI 26–28
VDI grade reference23 grades

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

Recommended VDI grades and nominal hardness references
VDIWork materialRecommendationHB ref.HRC ref.
1PNon-alloy steelGood125-
2PNon-alloy steelGood19013
3PNon-alloy steelExcellent25025
4PNon-alloy steelExcellent27028
5PNon-alloy steelExcellent30032
6PLow-alloy steelGood18010
7PLow-alloy steelExcellent27529
8PLow-alloy steelExcellent30032
9PLow-alloy steelExcellent35038
10PHigh-alloy and tool steelGood20015
11PHigh-alloy and tool steelExcellent32535
12MStainless steelGood20015
13MStainless steelGood24023
14MStainless steelGood18010
15KGrey cast ironExcellent18010
16KGrey cast ironExcellent26026
17KNodular cast ironExcellent1603
18KNodular cast ironExcellent25025
19KMalleable cast ironExcellent130-
20KMalleable cast ironExcellent23021
26NCopper, bronze and brassGood110-
27NCopper, bronze and brassGood90-
28NCopper, bronze and brassGood100-

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.

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EDP No. Radius Mill Diameter ShankDia Length of Cut Length Below Shank Overall Length Mill Dia. Tolerance Shank Dia. Tolerance No. of Flute G9D69060 R0.50 6 6 9 18 57 0~-0.050 h5 4 G9D69060 R0.50 6 6 9 18 57 0~-0.050 h5 4 G9D69080 R0.50 8 8 12 24 63 0~-0.050 h5 4 G9D69080 R0.50 8 8 12 24 63 0~-0.050 h5 4 G9D69100 R0.50 10 10 15 30 72 0~-0.050 h5 4 G9D69100 R0.50 10 10 15 30 72 0~-0.050 h5 4 G9D69120 R0.50 12 12 18 36 83 0~-0.050 h5 4 G9D69120 R0.50 12 12 18 36 83 0~-0.050 h5 4 G9D69160 R1.0 16 16 24 48 100 0~-0.050 h5 5 G9D69160 R1.0 16 16 24 48 100 0~-0.050 h5 5 G9D69200 R1.0 20 20 30 60 110 0~-0.050 h5 5 G9D69200 R1.0 20 20 30 60 110 0~-0.050 h5 5

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