Skip to content
FREE SHIPPING ON ORDERS OVER $200
FREE SHIPPING ON ORDERS OVER $200

High-Performance 3/8" End Mills for Precision Machining

Shop high-quality 3/8" end mills at Star Tool Inc, designed for precision and durability. Available in multiple flute counts and coatings for versatile machining. Free shipping on orders over $200.

Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ Square Corner & Futura Nano Coating EM-38431125SQ-TiAlN
$46.28 - $46.28
$46.28
$46.28 - $46.28
$46.28

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
6 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3" Length of Cut - 1.125" Radius - Square Corner Coating - TiAlN

$46.28 - $46.28
$46.28
$46.28 - $46.28
$46.28
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 5/8" LOC w/ .060 R & Futura Nano Coating EM-3843625060-TiAlN
$47.52 - $47.52
$47.52
$47.52 - $47.52
$47.52

3/8" x 4 Fl x 3" OAL x 5/8" LOC w/ .060 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
3 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 0.625" Radius - .060 Coating - Futura Nano

$47.52 - $47.52
$47.52
$47.52 - $47.52
$47.52
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .090 R & Futura Nano Coating EM-38431125090-TiAlN
$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ .090 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
6 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 4 Length of Cut - 1.125" Radius - .090 Coating - TiAlN

$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 5/8" LOC w/ Square Corner & Futura Nano Coating EM-3843625SQ-TiAlN
$46.28 - $46.28
$46.28
$46.28 - $46.28
$46.28

3/8" x 4 Fl x 3" OAL x 5/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
3 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 0.625" Radius - Square Corner Coating - Futura Nano

$46.28 - $46.28
$46.28
$46.28 - $46.28
$46.28
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 5/8" LOC w/ B/N & Futura Nano Coating EM-3843625BN-TiAlN
Sold out
$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86

3/8" x 4 Fl x 3" OAL x 5/8" LOC w/ B/N & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 0.625" Radius - Ball Nose Coating - Futura Nano

$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86
Sold out
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 5/8" LOC w/ .120 R & Futura Nano Coating EM-3843625120-TiAlN
Sold out
$47.52 - $47.52
$47.52
$47.52 - $47.52
$47.52

3/8" x 4 Fl x 3" OAL x 5/8" LOC w/ .120 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 0.625" Radius - .120 Coating - Futura Nano

$47.52 - $47.52
$47.52
$47.52 - $47.52
$47.52
Sold out
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 5/8" LOC w/ .030 R & Futura Nano Coating EM-3843625030-TiAlN
Sold out
$47.52 - $47.52
$47.52
$47.52 - $47.52
$47.52

3/8" x 4 Fl x 3" OAL x 5/8" LOC w/ .030 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 0.625" Radius - .030 Coating - Futura Nano

$47.52 - $47.52
$47.52
$47.52 - $47.52
$47.52
Sold out
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/4" LOC w/ Square Corner & Futura Nano Coating EM-38431250SQ-TiAlN
$46.87 - $46.87
$46.87
$46.87 - $46.87
$46.87

3/8" x 4 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
5 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 1.250" Radius - Square Corner Coating - Futura Nano

$46.87 - $46.87
$46.87
$46.87 - $46.87
$46.87
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/4" LOC w/ B/N & Futura Nano Coating EM-38431250BN-TiAlN
$50.70 - $50.70
$50.70
$50.70 - $50.70
$50.70

3/8" x 4 Fl x 3" OAL x 1-1/4" LOC w/ B/N & Futura Nano Coating | Carbide End Mill

Star Tool Inc
4 in stock

Diameter -Â 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 1.250" Radius - Ball Nose Coating - Futura Nano

$50.70 - $50.70
$50.70
$50.70 - $50.70
$50.70
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .120 R & Futura Nano Coating EM-38431250120-TiAlN
Sold out
$50.44 - $50.44
$50.44
$50.44 - $50.44
$50.44

3/8" x 4 Fl x 3" OAL x 1-1/4" LOC w/ .120 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 1.250" Radius - .120 Coating - Futura Nano

$50.44 - $50.44
$50.44
$50.44 - $50.44
$50.44
Sold out
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .060 R & Futura Nano Coating EM-38431250060-TiAlN
$50.44 - $50.44
$50.44
$50.44 - $50.44
$50.44

3/8" x 4 Fl x 3" OAL x 1-1/4" LOC w/ .060 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
8 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 1.250" Radius - .060 Coating - Futura Nano

$50.44 - $50.44
$50.44
$50.44 - $50.44
$50.44
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .030 R & Futura Nano Coating EM-38431250030-TiAlN
$50.44 - $50.44
$50.44
$50.44 - $50.44
$50.44

3/8" x 4 Fl x 3" OAL x 1-1/4" LOC w/ .030 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
6 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.00" Length of Cut - 1.250" Radius - .030 Coating - Futura Nano

$50.44 - $50.44
$50.44
$50.44 - $50.44
$50.44
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .120 R & Futura Nano Coating EM-38431125120-TiAlN
$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ .120 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
2 in stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - .120 Coating - TiAlN

$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ Corner Chamfer & Futura Nano Coating EM-38431125CHMF-TiAlN
$48.69 - $48.69
$48.69
$48.69 - $48.69
$48.69

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ Corner Chamfer & Futura Nano Coating | Carbide End Mill

Star Tool Inc
7 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3" Length of Cut - 1.125" Radius - Corner Chamfer Coating - TiAlN

$48.69 - $48.69
$48.69
$48.69 - $48.69
$48.69
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .030 R & Futura Nano Coating EM-38431125030-TiAlN
Sold out
$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ .030 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 4 Overall Length - 3" Length of Cut - 1.125" Radius - .030 Coating - TiAlN

$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86
Sold out
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .060 R & Futura Nano Coating EM-38431125060-TiAlN
$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ .060 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
3 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3" Length of Cut - 1.125" Radius - .060 Coating - TiAlN

$49.86 - $49.86
$49.86
$49.86 - $49.86
$49.86
Star Tool Inc End Mill 3/8" x 4 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ B/N & Futura Nano Coating EM-38431125BN-TiAlN
$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26

3/8" x 4 Fl x 3" OAL x 1-1/8" LOC w/ B/N & Futura Nano Coating | Carbide End Mill

Star Tool Inc
7 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3" Length of Cut - 1.125" Radius - Ball Nose Coating - TiAlN

$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26
Star Tool Inc End Mill 3/8" x 5 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ Corner Chamfer & Futura Nano Coating EM-38531125CHMF-TiAlN
$48.69 - $48.69
$48.69
$48.69 - $48.69
$48.69

3/8" x 5 Fl x 3" OAL x 1-1/8" LOC w/ Corner Chamfer & Futura Nano Coating | Carbide End Mill

Star Tool Inc
4 in stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - Corner Chamfer Coating - TiAlN

$48.69 - $48.69
$48.69
$48.69 - $48.69
$48.69
Star Tool Inc End Mill 3/8" x 5 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .030 R & Futura Nano Coating EM-38531125030-TiAlN
Sold out
$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26

3/8" x 5 Fl x 3" OAL x 1-1/8" LOC w/ .030 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - .030 Coating - TiAlN

$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26
Sold out
Star Tool Inc End Mill 3/8" x 5 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .060 R & Futura Nano Coating EM-38531125060-TiAlN
Sold out
$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26

3/8" x 5 Fl x 3" OAL x 1-1/8" LOC w/ .060 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - .060 Coating - TiAlN

$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26
Sold out
Star Tool Inc End Mill 3/8" x 5 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .090 R & Futura Nano Coating EM-38531125090-TiAlN
$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26

3/8" x 5 Fl x 3" OAL x 1-1/8" LOC w/ .090 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
6 in stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - .090 Coating - TiAlN

$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26
Star Tool Inc End Mill 3/8" x 5 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ .120 R & Futura Nano Coating EM-38531125120-TiAlN
Sold out
$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26

3/8" x 5 Fl x 3" OAL x 1-1/8" LOC w/ .120 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - .120 Coating - TiAlN

$52.26 - $52.26
$52.26
$52.26 - $52.26
$52.26
Sold out
Star Tool Inc End Mill 3/8" x 5 Fl Performer Plus Carbide End Mill, 3" OAL x 1-1/8" LOC w/ B/N & Futura Nano Coating EM-38531125BN-TiAlN
$54.60 - $54.60
$54.60
$54.60 - $54.60
$54.60

3/8" x 5 Fl x 3" OAL x 1-1/8" LOC w/ B/N & Futura Nano Coating | Carbide End Mill

Star Tool Inc
11 in stock

Diameter - 3/8" Flutes - 5 Overall Length - 3" Length of Cut - 1.125" Radius - Ball Nose Coating - TiAlN

$54.60 - $54.60
$54.60
$54.60 - $54.60
$54.60

Want to Checkout using a Purchase Order? Sign up for a business account and get approved for net terms today!

YOUR CUTTING EDGE SINCE 1966

YOUR CUTTING EDGE SINCE 1966

Proudly Manufactured in Wichita, KS