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FREE SHIPPING ON ORDERS OVER $200
FREE SHIPPING ON ORDERS OVER $200

High-Performance Square 3-Flute End Mills

Explore Star Tool Inc's square 3-flute end mills, perfect for efficient material removal and precision cutting. Available in various sizes and coatings for top performance. Free shipping on orders over $200.

Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ Square Corner EM-516331250SQ
$38.19 - $38.19
$38.19
$38.19 - $38.19
$38.19

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
13 in stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

$38.19 - $38.19
$38.19
$38.19 - $38.19
$38.19
Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ B/N EM-516331250BN
$44.44 - $44.44
$44.44
$44.44 - $44.44
$44.44

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ B/N | Carbide End Mill

Star Tool Inc
5 in stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - Ball Nose Coating - Uncoated

$44.44 - $44.44
$44.44
$44.44 - $44.44
$44.44
Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .010 R EM-516331250010
$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ .010 R | Carbide End Mill

Star Tool Inc
18 in stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - .010 Coating - Uncoated

$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69
Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .030 R EM-516331250030
$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ .030 R | Carbide End Mill

Star Tool Inc
16 in stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - .030 Coating - Uncoated

$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69
Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .060 R EM-516331250060
$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ .060 R | Carbide End Mill

Star Tool Inc
18 in stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - .060 Coating - Uncoated

$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69
Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .090 R EM-516331250090
$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ .090 R | Carbide End Mill

Star Tool Inc
7 in stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - .090 Coating - Uncoated

$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69
Star Tool Inc End Mill 5/16" x 3 Fl Performer Carbide End Mill, 3" OAL x 1-1/4" LOC w/ .120 R EM-516331250120
Sold out
$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69

5/16" x 3 Fl x 3" OAL x 1-1/4" LOC w/ .120 R | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 5/16" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - .120 Coating - Uncoated 

$40.69 - $40.69
$40.69
$40.69 - $40.69
$40.69
Sold out

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YOUR CUTTING EDGE SINCE 1966

YOUR CUTTING EDGE SINCE 1966

Proudly Manufactured in Wichita, KS