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1/4" 4 Flute With Chamfered Corners "ONLY ONE" End Mill, 5/8"LOC, 3/8"Shank w/Flat, 2-7/16"OAL, PM60 Powdered Metal, Multiple Helix, Y-Coated

1/4" 4 Flute With Chamfered Corners "ONLY ONE" End Mill, 5/8"LOC, 3/8"Shank w/Flat, 2-7/16"OAL, PM60 Powdered Metal, Multiple Helix, Y-Coated 1/4" 4 Flute With Chamfered Corners "ONLY ONE" End Mill, 5/8"LOC, 3/8"Shank w/Flat, 2-7/16"OAL, PM60 Powdered Metal, Multiple Helix, Y-Coated 1/4" 4 Flute With Chamfered Corners "ONLY ONE" End Mill, 5/8"LOC, 3/8"Shank w/Flat, 2-7/16"OAL, PM60 Powdered Metal, Multiple Helix, Y-Coated 1/4" 4 Flute With Chamfered Corners "ONLY ONE" End Mill, 5/8"LOC, 3/8"Shank w/Flat, 2-7/16"OAL, PM60 Powdered Metal, Multiple Helix, Y-Coated
YG-1 TOOL CO.
GYG66016
GYG66016
GYG66016
0.2500" 1/4"
Weight: 0.034 LBS
Brand: YG-1 TOOL CO.
$33.94
(30% off)
$23.81
each
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Technical Details & Downloads
Technical/Extra Information Catalog Page Catalog Page
Product Description

1/4" 4 Flute With Chamfered Corners "Only One" End Mill, 5/8"Loc, 3/8"Shank W/Flat, 2-7/16"Oal, Pm60 Powdered Metal, Multiple Helix, Y-Coated. Yg-1 Only One Pm60 Coated End Mills. All New Material. All New Approach To Cutting Tools. Don’T Fear Unstable Cutting Conditions. Only One End Mills Provide Unbridled Performance That Won’T Fade In The Long Runs. Compared To Hss-Co8% M42 Cobalt And Solid Carbide, Only One Can Take The Vibrations – Without Fear Of Chipping – And Get The Job Done. Stop Cutting Yourself Short On Performance And Durability. Only One End Mills Are Built Tough To Handle Higher Heat And Faster Speeds. Extreme Toughness Beats Hss-Co8% M42 Cobalt With A Wider Application Range Versus Carbide Tools. They Stay Sharper, Cut Cleaner And Resist Wear Longer Than Conventional Coated Carbide. That’S Performance And Durability You Can Bank On. With Only One In Your Shop, You’Ve Got The Power To Cut The Toughest Materials And Your Machine Tool Cost Too. That's Because Only One End Mills Are Competitively Priced And Can Replace A Wide Range Of Tools In Your Crib. Priced About 30% Less Than Carbide Tools, Only One End Mills Can Outperform M42 And Pm30. So Go Deeper. Go Faster. Go Longer – With Only One.

  • YG-1 ONLY-ONE Series GYG66: Inch size HSS-PM, PM60 powdered metal end mills, center cutting, single end, chamfered corners, 4 flutes, Weldon Flat shank, 35°/37° multi-helix, regular length, AlCr based Y-coated
  • ONLY ONE end mills stay sharper, cut cleaner and resist wear longer than convention coated carbide. That’s performance and durability you can bank on.
  • Top toughness performance through new advanced PM60 tool material
  • Exceptional heat disbursement through YG-1's advanced AlCr based Y-coating
  • Versatile – Use on nearly any workpiece material or machine
  • Stands up to conditions where carbide may chip: unstable conditions, older equipment, heavier cuts
  • Higher feeds and speeds capability than traditional HSS and cobalt tools
  • Higher performance in unstable cutting conditions with heavy vibrations
  • Less expensive and more versatile than general purpose carbide tools

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
$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
Factory Stock
100
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Additional Product Details

Technical Details

Manufacturer
YG-1 TOOL CO.
Manufacturer Part Number
GYG66016
Tool Diameter
0.2500" 1/4"
Length Of Cut
0.625"
Overall Length
2.437"
Shank Diameter
0.3750" 3/8"
Radius Size
Chamfered
Number Of Flutes
4
Helix Angle
35°/37° Multi-Helix
End Style
Chamfered
Tool Coating
Y-Coating (AlCr Based)
Tool Substrate Material
Powdered Metal - PM60 HSS-PM
Primary Application
General Purpose
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
GYG66
Single Or Double End
Single End
Center Cutting
Center Cutting
Type Of End Mill
Finisher
Model
ONLY ONE
Shank Type
Weldon Flat Shank
Helix Type
Unequal Index

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