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	System of Measurement System of Measurement

	Mill Diameter Mill Diameter

1/4"

	For Use On For Use On

	Material Material

Cobalt Steel

	Finish Finish

Titanium Nitride (TiN)
Coated

Uncoated

	Shank Diameter Shank Diameter

	Number of Flutes Number of Flutes

	2

	Length of Cut Length of Cut

	Point Angle Point Angle

90°

	Overall Length Overall Length

	Individual/Set Individual/Set

	Individual

	Flute Type Flute Type

Spiral

	Shank Type Shank Type

	Round

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

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20 Products

Cobalt Steel Drill/Mill End Mills

Drill/Mill Cut Style

Made of cobalt steel, these end mills have good heat and wear resistance, so they can run at high speeds in hard material. A 90° pointed tip allows them to be used for drilling as well as for slotting, profiling, and chamfering cuts. All are center cutting, allowing plunge cuts into a surface.

Use uncoated end mills for general purpose milling and short production runs. Use titanium-nitride (TiN) coated end mills for demanding, high-speed jobs in hard material as well as for longer production runs. They’re more wear resistant than uncoated end mills, which means they last longer when run at similar speeds.

Uncoated
Mill Dia.	Shank Dia.	Lg. of Cut	Overall Lg.	Flute Spacing	Point Angle	Helix Angle	For Use On	End Mill Type		Each
2 Flute
1/4"	3/8"	5/8"	2 7/16"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	000000
5/16"	3/8"	23/32"	2 15/32"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
3/8"	3/8"	3/4"	2 1/2"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
7/16"	3/8"	1 1/32"	2 23/32"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
1/2"	1/2"	1 1/4"	3 1/4"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
9/16"	1/2"	1 13/32"	3 13/32"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
5/8"	5/8"	1 5/8"	3 3/4"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
3/4"	3/4"	1 11/16"	3 15/16"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
7/8"	3/4"	1 15/16"	4 3/16"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
1"	3/4"	2"	4 1/4"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
Titanium Nitride (TiN) Coated
2 Flute
1/4"	3/8"	5/8"	2 7/16"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
5/16"	3/8"	23/32"	2 15/32"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
3/8"	3/8"	3/4"	2 1/2"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
7/16"	3/8"	1 1/32"	2 23/32"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
1/2"	1/2"	1 1/4"	3 1/4"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
9/16"	1/2"	1 13/32"	3 13/32"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
5/8"	5/8"	1 5/8"	3 3/4"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
3/4"	3/4"	1 11/16"	3 15/16"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	00000
7/8"	3/4"	1 15/16"	4 3/16"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	000000
1"	3/4"	2"	4 1/4"	Equal	90°	30°	Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel	Center Cutting	0000000	000000