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EDP 34089, 3400 Harmon-i-Cut 1/4" Ball End Mill

Series 3400·EDP 34089
34089End Mill
Harmon-i-Cut
In Stock
Michigan10
Fast Shipping
Same day on most stocked items
Regrind
Recondition & recoat
Family Owned
Michigan & California
Specifications
Coating
FC18
Number of Flutes
4
End Type
Ball
Length
Standard
Cutting Diameter
0.2500
Flute Length
0.7500
Shank Diameter
0.2500
Overall Length
2.5000
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 Ball · Standard

8 EDPs
DiameterFlute LengthShank DiameterOverall LengthEDP
1/8"1/2"1/8"1-1/2"
3/16"5/8"3/16"2"
1/4"3/4"1/4"2-1/2"
34089
5/16"7/8"5/16"2-1/2"
3/8"1"3/8"2-1/2"
7/16"1"7/16"2-3/4"
1/2"1"1/2"3"
1"1-1/2"1"4"

1/4" 3400 Harmon-i-Cut, other ends & lengths

EDPEndLengthFlute lengthOverall lengthRadiusOpen
34926BallStub3/8"2"
34758Corner RadiusStandard3/8"2"0.0100"
34760Corner RadiusStandard3/8"2"0.0600"
34561Corner RadiusStandard3/4"2-1/2"0.0100"
34049Corner RadiusStandard3/4"2-1/2"0.0200"
34198Corner RadiusLong Reach3/4"3"0.0200"
34051Corner RadiusStandard3/4"2-1/2"0.0600"
34052Corner RadiusStandard3/4"2-1/2"0.0900"
34902SquareStub3/8"2"

1/4" in other End Mills

EDPSeriesFlute lengthOverall lengthFlutesOpen
272493833 AlumaMill G33/4"2-1/2"3
303533200 4-Flute General Purpose3/4"2-1/2"4
303913215 2-Flute General Purpose3/4"2-1/2"2
308063300 3-Flute General Purpose3/4"2-1/2"3
350193500 Fury3/4"2-1/2"4
367073510 Fury High Wrap Ball3/4"2-1/2"4

About EDP 34089

Fullerton EDP 34089 is the 3400 Harmon-i-Cut 1/4" Ball End Mill: length Standard, flute length 3/4", shank diameter 1/4", overall length 2-1/2", coating FULCOAT 18, cutting type Center, 4 flutes. Made in the USA by Fullerton Tool.

EDP 34089 questions

What are the dimensions of Fullerton EDP 34089?
EDP 34089 has a cutting diameter of 1/4" (0.2500" · 6.35 mm), flute length of 3/4" (0.7500" · 19.05 mm), shank diameter of 1/4" (0.2500" · 6.35 mm) and overall length of 2-1/2" (2.5000" · 63.5 mm).
What coating is on EDP 34089?
EDP 34089 is coated with FULCOAT 18.
What materials is EDP 34089 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 34089?
Live stock by warehouse, lead time and your account's price for EDP 34089 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.