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EDP 34566, 3400 Harmon-i-Cut 7/16" Corner Radius End Mill

Series 3400·EDP 34566
34566End Mill
Harmon-i-Cut
In Stock
Michigan10
Fast Shipping
Same day on most stocked items
Regrind
Recondition & recoat
Family Owned
Michigan & California
Made To Order

This item is no longer a stocked product. Limited stock remains. Order available inventory now or request a quote for pricing and availability.

Specifications
Coating
FC18
Number of Flutes
4
End Type
Corner Radius
Length
Standard
Cutting Diameter
0.4375
Flute Length
1.0000
Shank Diameter
0.4375
Overall Length
2.7500
Radius
0.0900
Cutting Type
Center
RghFinSlotPlngHEM
KCast Iron
NBrass & Copper
Also applicable Steels · Stainless · Super Alloys · Titanium
Not suitedCompositesPlastics
FULCOAT 18Coating Profile

Built for high-speed machining with outstanding oxidation resistance, hot hardness, and wear resistance. Ideal for stainless steels, alloy steels, titanium, and hardened steels.

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The 3400 Harmon-i-Cut is a 4-flute, high-performance end mill designed for brass, copper, cast iron, steels, stainless steels, titanium, and nickel-based super alloys, including Inconel. Its variable helix, unequal flute spacing, and varying rake help reduce harmonics and chatter while supporting longer tool life and higher material-removal rates in difficult-to-machine materials.

84 Years
Third-generation, family-owned
US Headquarters
Saginaw, Michigan
ISO 9001:2015
Certified quality system
Regrind Program
Recondition & recoat service

Size chart · 3400 Harmon-i-Cut Corner Radius · Standard

41 EDPs
Corner radius
DiameterFlute LengthShank DiameterOverall Length0.0100"0.0200"0.0300"0.0350"0.0600"0.0900"0.1200"
1/8"1/4"1/8"1-1/2"
1/8"1/2"1/8"1-1/2"
3/16"7/16"3/16"2"
3/16"5/8"3/16"2"
1/4"3/8"1/4"2"
1/4"3/4"1/4"2-1/2"
5/16"1/2"5/16"2"
5/16"7/8"5/16"2-1/2"
3/8"1/2"3/8"2-1/2"
3/8"1"3/8"2-1/2"
3/8"2"3/8"4"
7/16"1"7/16"2-3/4"
34566
1/2"1"1/2"3"
1/2"1-1/4"1/2"3"
1/2"2"1/2"4"
5/8"3/4"5/8"3-1/2"
5/8"1-1/2"5/8"3-1/2"
5/8"2-1/4"5/8"5"
3/4"7/8"3/4"4"
3/4"2-1/4"3/4"5"
1"2-1/4"1"5"

7/16" 3400 Harmon-i-Cut, other ends & lengths

EDPEndFlute lengthOverall lengthOpen
34101Ball1"2-3/4"
34021Square1"2-3/4"

7/16" in other End Mills

EDPSeriesEndLengthFlute lengthOverall lengthRadiusFlutesOpen
315723200 4-Flute General PurposeCorner RadiusStandard1"2-3/4"0.0300"4
359983500 FuryCorner RadiusStandard1"2-3/4"0.0150"4
376063412 Fantom 2.0Corner RadiusStandard1"2-3/4"0.0200"5
334183335 Alloy Steel RougherCorner RadiusStub9/16"2-3/4"0.0150"3
274293833 AlumaMill G3Corner RadiusExtra-Long2"4"0.0300"3
302183215 2-Flute General PurposeBallExtra-Long1"4"2

About EDP 34566

Fullerton EDP 34566 is the 3400 Harmon-i-Cut 7/16" Corner Radius End Mill: length Standard, flute length 1", shank diameter 7/16", overall length 2-3/4", radius 0.0900", coating FULCOAT 18, cutting type Center, 4 flutes. Made in the USA by Fullerton Tool.

EDP 34566 questions

What are the dimensions of Fullerton EDP 34566?
EDP 34566 has a cutting diameter of 7/16" (0.4375" · 11.11 mm), flute length of 1" (1.0000" · 25.4 mm), shank diameter of 7/16" (0.4375" · 11.11 mm), overall length of 2-3/4" (2.7500" · 69.85 mm) and radius of 0.0900" (2.29 mm).
What coating is on EDP 34566?
EDP 34566 is coated with FULCOAT 18.
What materials is EDP 34566 rated for?
The 3400 Harmon-i-Cut is rated for Cast Iron, Stainless Steels, Brass & Copper, Steels and Super Alloys (Nickel based, Inconel).
Where can I check stock and price for EDP 34566?
Live stock by warehouse, lead time and your account's price for EDP 34566 are in Fullerton's tool search at fullertontool.com/search. Signed-in customers can order from there.
What materials is the 3400 Harmon-i-Cut designed for?
It's designed for Brass & Copper, Cast Iron, Stainless Steels, Steels, Super Alloys (Nickel based, Inconel), and Titanium.
What coating does the 3400 Harmon-i-Cut come with?
It's stocked with FC 18 coating. Our FC18 coating is built for high-speed machining with outstanding oxidation resistance, hot hardness, and wear resistance. Ideal for stainless steels, alloy steels, titanium, and hardened steels.
What end styles are available for the 3400 Harmon-i-Cut?
It's available in Ball, Corner Radius, Square.
How many flutes does the 3400 Harmon-i-Cut have?
The 3400 Harmon-i-Cut is a 4-flute tool.
What's the helix angle on the 3400 Harmon-i-Cut?
The 3400 Harmon-i-Cut uses a variable helix angle.
What tolerances does the 3400 Harmon-i-Cut hold?
The 3400 Harmon-i-Cut holds a shank tolerance of h6 and a cutter tolerance of +.0000"/-.002" | +0.00mm/-0.05mm.