Micro End Mills | McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	Mill Diameter Mill Diameter

	Cut Style Cut Style


Square	Ball

Engraving	Chamfer

Tapered	Corner Rounding

Dovetail	Undercutting

Double Chamfer	Drill/Mill

Rounded- Edge Square

	Number of Flutes Number of Flutes

	1		2
	3		4
	5

	For Use On For Use On

	Length of Cut Length of Cut

	Shank Diameter Shank Diameter

	Material Material

Carbide

High-Speed Steel

Cobalt Steel

	Finish Finish

Uncoated

Titanium Carbonitride (TiCN)
Coated

Titanium Aluminum Nitride
(TiAlN) Coated

Titanium Nitride (TiN)
Coated

Diamondlike Carbon (DLC)
Coated

Diamond Coated

Titanium Aluminum Silicon
Nitride (TiAISiN) Coated

	Number of Milling Ends Number of Milling Ends

	1
	2

	Overall Length Overall Length

	Flute Spacing Flute Spacing

Equal

Variable

	Flute Type Flute Type

Spiral

Straight

Intersecting

	Helix Angle Helix Angle

35°-38°

36°-38°

39°-41°

	Taper Angle per Side Taper Angle per Side

	Cutting Angle Cutting Angle

	Taper End Style Taper End Style

Square End

Ball End

	Maximum Taper Diameter Maximum Taper Diameter

	Corner Cut Radius Corner Cut Radius

0.01"

0.015"

0.02"

	Cut Radius Cut Radius

0.01"

1/64"

	Tip Diameter Tip Diameter

0.015"

0.09"

0.1"

	Neck Length Neck Length

0.18"

1/4"

1/2"

	Mill Thickness Mill Thickness

0.051"

1.3mm

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1,182 Products

End Mills and Milling Cutters

Carbide Square End Mills

For longer tool life and a better finish in general purpose milling applications, these solid carbide end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel end mills. They have one milling end and a standard shank.

Carbide Square End Mills
with Two Milling Ends

When one end wears out, switch to the opposite end for two times the life of a standard carbide end mill. Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel for the longest life and best finish on hard material.

High-Speed Steel Square End Mills

Use these end mills for general purpose milling in most material, such as aluminum, brass, bronze, iron, and steel.

Cobalt Steel Square End Mills

With better heat and wear resistance than high-speed steel, cobalt steel end mills can run at higher speeds and provide better performance on hard material.

Ball End Mills

Good for rounded slots, sloping cuts, and contours, ball end mills have a rounded cutting edge.

Engraving End Mills

A fine-point tip cuts lettering, designs, and logos in a variety of metals and composites, such as aluminum, fiberglass, and titanium.

Chamfer End Mills

More angled than tapered end mills, chamfer end mills have cutting angles of 45° and higher for making chamfer, bevel, and other angled cuts.

Tapered End Mills

Also known as taper degree end mills, these end mills are angled from anywhere between 1/2° and 45° for machining angled slots in dies and molds.

Carbide Corner-Rounding End Mills

Made of solid carbide, these end mills are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the end mill from breaking.

Undercutting End Mills

A fine-point tip cuts lettering and numbering and makes designs in a variety of metals and composites, such as aluminum, fiberglass, and titanium.

Carbide Dovetail End Mills

Drill/Mill End Mills

These multifunction tools have a 90° pointed tip that allows them to be used for drilling as well as for slotting, profiling, and chamfering cuts.

Rounded-Edge Square End Mills

Often used for slotting and pocketing cuts in mold and die making, these end mills have a 90° profile with rounded corners, which reduce flute breakage and chipping.

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End Mills and Milling Cutters

Carbide Square End Mills

Carbide Square End Millswith Two Milling Ends

High-Speed Steel Square End Mills

Cobalt Steel Square End Mills

Ball End Mills

Engraving End Mills

Chamfer End Mills

Tapered End Mills

Carbide Corner-Rounding End Mills

Undercutting End Mills

Carbide Dovetail End Mills

Drill/Mill End Mills

Rounded-Edge Square End Mills

Carbide Square End Mills
with Two Milling Ends