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5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"LOC, 3"OAL. YG-1 X-POWER 30° Helix X-Coated For Steels To HRc55

5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"LOC, 3"OAL. YG-1 X-POWER 30° Helix X-Coated For Steels To HRc55 5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"LOC, 3"OAL. YG-1 X-POWER 30° Helix X-Coated For Steels To HRc55 5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"LOC, 3"OAL. YG-1 X-POWER 30° Helix X-Coated For Steels To HRc55 5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"LOC, 3"OAL. YG-1 X-POWER 30° Helix X-Coated For Steels To HRc55 5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"LOC, 3"OAL. YG-1 X-POWER 30° Helix X-Coated For Steels To HRc55
YG-1 TOOL CO.
93227
93227
93227
0.3125" 5/16"
Weight: 0.122 LBS
Brand: YG-1 TOOL CO.
$78.33
(31% off)
$54.39
each
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Technical Details & Downloads
Technical/Extra Information
Product Description

5/16" 4 Flute With .030" Corner Radius Stub Length Carbide End Mill, 5/16"Plain Shank, 1/2"Loc, 3"Oal. Yg-1 X-Power 30° Helix X-Coated For Steels To Hrc55. Yg-1 X-Power Carbide End Mills Are Designed For High Performance, High Speed Cutting Carbon Steels, Non-Alloyed Steels, Cast Iron, Alloy Steels, Tool Steels, Mold Steels, Pre-Hardened Steels And Other Hardened Materials Up To Hrc55. Micrograin Carbide Substrate With X-Power Coating Exhibits Higher Hardness, Heat Resistance And Wear Resistance Allowing For Faster Speeds, Increased Feed Rates And Superior Workpiece Finishes, Suitable For Wet Or Dry Cutting.

  • YG-1 X-POWER Series EM639: Inch size micrograin carbide end mills, plain shank, 4 flutes, 30° helix, center cutting, single end, corner radius, stub length, X-Power coated
  • Designed to machine tool steel, alloy steel, mold steel and other high hardened materials.
  • 4 flutes allows for better workpiece finishes.
  • Increased production and feed rates.

This item is part of our complete offering of YG-1 Cutting Tools, trusted for high-performance CNC machining, consistent quality, and broad application coverage across milling, drilling, threading, tool holding, and indexable operations. Browse YG-1 End Mills for carbide and cobalt milling solutions, YG-1 Hole Making Tools for drills and reamers, YG-1 Threading Tools for taps and thread mills, YG-1 Tool Holders for dependable tool holding solutions, and YG-1 Indexable Tooling for productive insert-based machining. You can also visit our main YG-1 Cutting Tools page to shop the full line and compare sizes, coatings, and performance styles for your application.

Made in Korea, Republic of
Shipping & Delivery Options
VERNON HILLS, ILLINOIS, USA
  • UPS

Suncoast Shipping Deals

Min. order amount Shipping Option Special Rate Max Weight
$399.00 UPS Ground 1 – 4 Business days (Lower 48 States) $0.00 10 LBS
$75.00 Economy (5 - 7 days)**
(This deal only applies to our Local Florida in stock items)		 $0.00 5 LBS
$25.00 UPS Ground 1 – 4 Business days (Lower 48 States) $8.99 15 LBS
$499.00 UPS Blue 2 Business Days $9.99 7 LBS
$399.00 UPS Blue 2 Business Days $13.99 5 LBS
$50.00 UPS Blue 2 Business Days $15.99 6 LBS
$50.00 UPS Red by 10:30am 1 Business Day $31.99 2 LBS
Note: Special vendor shipping deals are destination-based and may not be available in all ZIP codes. If this rate is not available for your shipping address, standard shipping options will be shown at checkout.
$25.00 MINIMUM ORDER
If Ordered By 3pm Eastern Standard Time YG Will Ship Same Business Day
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Additional Product Details

Technical Details

Manufacturer
YG-1 TOOL CO.
Manufacturer Part Number
93227
Tool Diameter
0.3125" 5/16"
Length Of Cut
0.500"
Overall Length
3.000"
Shank Diameter
0.3125" 5/16"
Length Below Shank
0.000"
Radius Size
0.030"
Corner Radius
0.030"
Number Of Flutes
4
Helix Angle
30°
End Style
Radius
Tool Coating
X-Power Coated
Tool Substrate Material
Carbide
Primary Application
Alloy, Pre-Hardened, Hardened Steels to HRc55
Max Reach
0.000"
Hand Cutting Direction
Right Hand
Inch Or Metric
Inch
Country of Origin
Korea, Republic of
Hand Helix Direction
Right Hand
Series
EM639
Single Or Double End
Single End
Center Cutting
Center Cutting
Type Of End Mill
Finisher
Model
X-POWER
Shank Type
Plain Shank
Helix Type
Equal Index
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Offer Good Online, Minimum $250 in Purchases, max weight 10 Pounds, on the entire site! Offer good through Sunday

7/5/2026 FREE-SHIP-250
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