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

Precision Square Corner End Mills for Accurate and Durable Machining

Browse our collection of Square Corner End Mills, engineered for precision and durability. Available in multiple sizes and coatings for diverse machining applications. Proudly manufactured in Wichita, KS, since 1966. Free shipping on orders over $200.

Original price $14.85 - Original price $14.85
Original price
$14.85
$14.85 - $14.85
Current price $14.85

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

Star Tool Inc
41 in stock

Diameter - 1/4" Flutes - 3 Overall Length - 3" Length of Cut - 0.750" Radius - Square Corner Coating - Uncoated

Original price $14.85 - Original price $14.85
Original price
$14.85
$14.85 - $14.85
Current price $14.85
Original price $24.45 - Original price $24.45
Original price
$24.45
$24.45 - $24.45
Current price $24.45

3/8" x 3 Fl x 3" OAL x 1-1/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
11 in stock

Diameter - 3/8" Flutes - 3 Overall Length - 3" Length of Cut - 1-1/8" Radius - Square Corner Coating - Uncoated

Original price $24.45 - Original price $24.45
Original price
$24.45
$24.45 - $24.45
Current price $24.45
Original price $38.70 - Original price $38.70
Original price
$38.70
$38.70 - $38.70
Current price $38.70

1/2" x 3 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
31 in stock

Diameter - 1/2" Flutes - 3 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

Original price $38.70 - Original price $38.70
Original price
$38.70
$38.70 - $38.70
Current price $38.70
Original price $19.85 - Original price $19.85
Original price
$19.85
$19.85 - $19.85
Current price $19.85

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

Star Tool Inc
29 in stock

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

Original price $19.85 - Original price $19.85
Original price
$19.85
$19.85 - $19.85
Current price $19.85
Original price $91.80 - Original price $91.80
Original price
$91.80
$91.80 - $91.80
Current price $91.80

3/4" x 3 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
17 in stock

Diameter - 3/4" Flutes - 3 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - Uncoated

Original price $91.80 - Original price $91.80
Original price
$91.80
$91.80 - $91.80
Current price $91.80
Original price $50.15 - Original price $50.15
Original price
$50.15
$50.15 - $50.15
Current price $50.15

1/2" x 4 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
4 in stock

Diameter - 1/2" Flutes - 4 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - TiAlN

Original price $50.15 - Original price $50.15
Original price
$50.15
$50.15 - $50.15
Current price $50.15
Original price $72.00 - Original price $72.00
Original price
$72.00
$72.00 - $72.00
Current price $72.00

5/8" x 3 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
11 in stock

Diameter - 5/8" Flutes - 3 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - Uncoated

Original price $72.00 - Original price $72.00
Original price
$72.00
$72.00 - $72.00
Current price $72.00
Original price $26.00 - Original price $26.00
Original price
$26.00
$26.00 - $26.00
Current price $26.00

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

Star Tool Inc
12 in stock

Diameter - 1/4" Flutes - 4 Overall Length - 3" Length of Cut - 0.750" Radius - Square Corner Coating - TiAlN

Original price $26.00 - Original price $26.00
Original price
$26.00
$26.00 - $26.00
Current price $26.00
Original price $45.15 - Original price $45.15
Original price
$45.15
$45.15 - $45.15
Current price $45.15

1/2" x 4 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
14 in stock

Diameter - 1/2" Flutes - 4 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - Uncoated

Original price $45.15 - Original price $45.15
Original price
$45.15
$45.15 - $45.15
Current price $45.15
Original price $35.15 - Original price $35.15
Original price
$35.15
$35.15 - $35.15
Current price $35.15

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
5 in stock

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

Original price $35.15 - Original price $35.15
Original price
$35.15
$35.15 - $35.15
Current price $35.15
Original price $112.05 - Original price $112.05
Original price
$112.05
$112.05 - $112.05
Current price $112.05

3/4" x 4 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
9 in stock

Diameter - 3/4" Flutes - 4 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - TiAlN

Original price $112.05 - Original price $112.05
Original price
$112.05
$112.05 - $112.05
Current price $112.05
Original price $35.85 - Original price $35.85
Original price
$35.85
$35.85 - $35.85
Current price $35.85

1/2" x 4 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
11 in stock

Diameter - 1/2" Flutes - 4 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

Original price $35.85 - Original price $35.85
Original price
$35.85
$35.85 - $35.85
Current price $35.85
Original price $14.85 - Original price $14.85
Original price
$14.85
$14.85 - $14.85
Current price $14.85

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

Star Tool Inc
12 in stock

Diameter - 1/4" Flutes - 4 Overall Length - 3" Length of Cut - 0.750" Radius - Square Corner Coating - Uncoated

Original price $14.85 - Original price $14.85
Original price
$14.85
$14.85 - $14.85
Current price $14.85
Original price $32.80 - Original price $32.80
Original price
$32.80
$32.80 - $32.80
Current price $32.80

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

Star Tool Inc
10 in stock

Diameter - 5/16" Flutes - 4 Overall Length - 3" Length of Cut - 1.250" Corner Radius - Square Corner Coating - TiAlN

Original price $32.80 - Original price $32.80
Original price
$32.80
$32.80 - $32.80
Current price $32.80
Original price $87.35 - Original price $87.35
Original price
$87.35
$87.35 - $87.35
Current price $87.35

5/8" x 4 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
5 in stock

Diameter - 5/8" Flutes - 4 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - TiAlN

Original price $87.35 - Original price $87.35
Original price
$87.35
$87.35 - $87.35
Current price $87.35
Original price $16.30 - Original price $16.30
Original price
$16.30
$16.30 - $16.30
Current price $16.30

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

Star Tool Inc
9 in stock

Diameter - 1/4" Flutes - 3 Overall Length - 3.00" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

Original price $16.30 - Original price $16.30
Original price
$16.30
$16.30 - $16.30
Current price $16.30
Original price $48.00 - Original price $48.00
Original price
$48.00
$48.00 - $48.00
Current price $48.00

1/2" x 3 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
7 in stock

Diameter - 1/2" Flutes - 3 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - Uncoated

Original price $48.00 - Original price $48.00
Original price
$48.00
$48.00 - $48.00
Current price $48.00
Original price $35.15 - Original price $35.15
Original price
$35.15
$35.15 - $35.15
Current price $35.15

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

Star Tool Inc
7 in stock

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

Original price $35.15 - Original price $35.15
Original price
$35.15
$35.15 - $35.15
Current price $35.15
Original price $35.85 - Original price $35.85
Original price
$35.85
$35.85 - $35.85
Current price $35.85

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

Original price $35.85 - Original price $35.85
Original price
$35.85
$35.85 - $35.85
Current price $35.85
Original price $22.35 - Original price $22.35
Original price
$22.35
$22.35 - $22.35
Current price $22.35

3/8" x 3 Fl x 3" OAL x 5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
9 in stock

Diameter - 3/8" Flutes - 3 Overall Length - 3.00" Length of Cut - .0625" Radius - Square Corner Coating - Uncoated

Original price $22.35 - Original price $22.35
Original price
$22.35
$22.35 - $22.35
Current price $22.35
Original price $25.20 - Original price $25.20
Original price
$25.20
$25.20 - $25.20
Current price $25.20

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

Star Tool Inc
11 in stock

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

Original price $25.20 - Original price $25.20
Original price
$25.20
$25.20 - $25.20
Current price $25.20
Original price $110.70 - Original price $110.70
Original price
$110.70
$110.70 - $110.70
Current price $110.70

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

Star Tool Inc
8 in stock

Diameter - 3/4" Flutes - 4 Overall Length - 4.00" Length of Cut - 1.250" Radius - Square Corner Coating - Futura NanoÂ

Original price $110.70 - Original price $110.70
Original price
$110.70
$110.70 - $110.70
Current price $110.70
Original price $91.80 - Original price $91.80
Original price
$91.80
$91.80 - $91.80
Current price $91.80

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

Star Tool Inc
6 in stock

Diameter - 3/4" Flutes - 3 Overall Length - 4.00" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

Original price $91.80 - Original price $91.80
Original price
$91.80
$91.80 - $91.80
Current price $91.80
Original price $27.20 - Original price $27.20
Original price
$27.20
$27.20 - $27.20
Current price $27.20

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

Star Tool Inc
7 in stock

Diameter - 1/4" Flutes - 4 Overall Length - 3.00" Length of Cut - 1.250" Radius - Square Corner Coating - Futura Nano

Original price $27.20 - Original price $27.20
Original price
$27.20
$27.20 - $27.20
Current price $27.20
Original price $20.30 - Original price $20.30
Original price
$20.30
$20.30 - $20.30
Current price $20.30

1/4" x 4 Fl x 2" OAL x 5/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
9 in stock

Diameter - 1/4" Flutes - 4 Overall Length - 2.00" Length of Cut - 0.625" Radius - Square Corner Coating - Futura Nano

Original price $20.30 - Original price $20.30
Original price
$20.30
$20.30 - $20.30
Current price $20.30
Original price $21.10 - Original price $21.10
Original price
$21.10
$21.10 - $21.10
Current price $21.10

1/4" x 4 Fl x 2" OAL x 5/8" LOC w/ .030 R & Futura Nano Coating | Carbide End Mill

Star Tool Inc
8 in stock

Diameter - 1/4" Flutes - 4 Overall Length - 2.00" Length of Cut - 0.625" Radius - .030 Coating - Futura Nano

Original price $21.10 - Original price $21.10
Original price
$21.10
$21.10 - $21.10
Current price $21.10
Original price $12.55 - Original price $12.55
Original price
$12.55
$12.55 - $12.55
Current price $12.55

1/4" x 3 Fl x 2" OAL x 5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
5 in stock

Diameter - 1/4" Flutes - 3 Overall Length - 2.00" Length of Cut - 0.625" Radius - Square Corner Coating - Uncoated

Original price $12.55 - Original price $12.55
Original price
$12.55
$12.55 - $12.55
Current price $12.55
Original price $47.40 - Original price $47.40
Original price
$47.40
$47.40 - $47.40
Current price $47.40

1/2" x 4 Fl x 3" OAL x 5/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
5 in stock

Diameter - 1/2" Flutes - 4 Overall Length - 3" Length of Cut - 0.625" Radius - Square Corner Coating - Futura Nano

Original price $47.40 - Original price $47.40
Original price
$47.40
$47.40 - $47.40
Current price $47.40
Original price $34.40 - Original price $34.40
Original price
$34.40
$34.40 - $34.40
Current price $34.40

1/2" x 3 Fl x 3" OAL x 5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
5 in stock

Diameter - 1/2" Flutes - 3 Overall Length - 3" Length of Cut - 0.625" Radius - Square Corner Coating - Uncoated

Original price $34.40 - Original price $34.40
Original price
$34.40
$34.40 - $34.40
Current price $34.40
Original price $34.40 - Original price $34.40
Original price
$34.40
$34.40 - $34.40
Current price $34.40

1/2" x 2 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
10 in stock

Diameter - 1/2" Flutes - 2 Overall Length - 3.0" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

Original price $34.40 - Original price $34.40
Original price
$34.40
$34.40 - $34.40
Current price $34.40
Original price $90.35 - Original price $90.35
Original price
$90.35
$90.35 - $90.35
Current price $90.35

3/4" x 4 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
10 in stock

Diameter - 3/4" Flutes - 4 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - Uncoated

Original price $90.35 - Original price $90.35
Original price
$90.35
$90.35 - $90.35
Current price $90.35
Original price $23.05 - Original price $23.05
Original price
$23.05
$23.05 - $23.05
Current price $23.05

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

Star Tool Inc
13 in stock

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

Original price $23.05 - Original price $23.05
Original price
$23.05
$23.05 - $23.05
Current price $23.05
Original price $69.10 - Original price $69.10
Original price
$69.10
$69.10 - $69.10
Current price $69.10

5/8" x 4 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
11 in stock

Diameter - 5/8" Flutes - 4 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - Uncoated

Original price $69.10 - Original price $69.10
Original price
$69.10
$69.10 - $69.10
Current price $69.10
Original price $29.15 - Original price $29.15
Original price
$29.15
$29.15 - $29.15
Current price $29.15

3/8" x 3 Fl x 3.5" OAL x 1-1/2" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
8 in stock

Diameter - 3/8" Flutes - 3 Overall Length - 3.5" Length of Cut - 1.500" Radius - Square Corner Coating - Uncoated

Original price $29.15 - Original price $29.15
Original price
$29.15
$29.15 - $29.15
Current price $29.15
Original price $29.15 - Original price $29.15
Original price
$29.15
$29.15 - $29.15
Current price $29.15

3/8" x 4 Fl x 3.5" OAL x 1-1/2" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
8 in stock

Diameter - 3/8" Flutes - 4 Overall Length - 3.5" Length of Cut - 1.500" Radius - Square Corner Coating - Uncoated

Original price $29.15 - Original price $29.15
Original price
$29.15
$29.15 - $29.15
Current price $29.15
Original price $43.20 - Original price $43.20
Original price
$43.20
$43.20 - $43.20
Current price $43.20

1/2" x 3 Fl x 3.5" OAL x 1-1/2" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
11 in stock

Diameter - 1/2" Flutes - 3 Overall Length - 3.5" Length of Cut - 1.500" Radius - Square Corner Coating - Uncoated

Original price $43.20 - Original price $43.20
Original price
$43.20
$43.20 - $43.20
Current price $43.20
Original price $41.05 - Original price $41.05
Original price
$41.05
$41.05 - $41.05
Current price $41.05

1/2" x 4 Fl x 3.5" OAL x 1-1/2" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
6 in stock

Diameter - 1/2" Flutes - 4 Overall Length - 3.5" Length of Cut - 1.500" Radius - Square Corner Coating - Uncoated

Original price $41.05 - Original price $41.05
Original price
$41.05
$41.05 - $41.05
Current price $41.05
Original price $120.60 - Original price $120.60
Original price
$120.60
$120.60 - $120.60
Current price $120.60

3/4" x 3 Fl x 5" OAL x 2-1/4" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
4 in stock

Diameter - 3/4" Flutes - 3 Overall Length - 5" Length of Cut - 2.250" Radius - Square Corner Coating - Uncoated

Original price $120.60 - Original price $120.60
Original price
$120.60
$120.60 - $120.60
Current price $120.60
Original price $114.85 - Original price $114.85
Original price
$114.85
$114.85 - $114.85
Current price $114.85

3/4" x 4 Fl x 5" OAL x 2-1/4" LOC w/ Square Corner | Carbide End Mill

Star Tool Inc
Out of stock

Diameter - 3/4" Flutes - 4 Overall Length - 5" Length of Cut - 2.250" Radius - Square Corner Coating - Uncoated

Original price $114.85 - Original price $114.85
Original price
$114.85
$114.85 - $114.85
Current price $114.85
Sold out
Original price $20.55 - Original price $20.55
Original price
$20.55
$20.55 - $20.55
Current price $20.55

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

Star Tool Inc
11 in stock

Diameter - 5/16" Flutes - 4 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - Uncoated

Original price $20.55 - Original price $20.55
Original price
$20.55
$20.55 - $20.55
Current price $20.55
Original price $27.35 - Original price $27.35
Original price
$27.35
$27.35 - $27.35
Current price $27.35

1/4" x 5 Fl x 3" OAL x 3/4" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
12 in stock

Diameter - 1/4" Flutes - 5 Overall Length - 3" Length of Cut - 0.750" Radius - Square Corner Coating - TiAlN

Original price $27.35 - Original price $27.35
Original price
$27.35
$27.35 - $27.35
Current price $27.35
Original price $50.15 - Original price $50.15
Original price
$50.15
$50.15 - $50.15
Current price $50.15

1/2" x 5 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
12 in stock

Diameter - 1/2" Flutes - 5 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - TiAlN

Original price $50.15 - Original price $50.15
Original price
$50.15
$50.15 - $50.15
Current price $50.15
Original price $113.45 - Original price $113.45
Original price
$113.45
$113.45 - $113.45
Current price $113.45

3/4" x 5 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner & Futura Nano Coating | Carbide End Mill

Star Tool Inc
10 in stock

Diameter - 3/4" Flutes - 5 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - TiAlN

Original price $113.45 - Original price $113.45
Original price
$113.45
$113.45 - $113.45
Current price $113.45
Original price $64.45 - Original price $64.45
Original price
$64.45
$64.45 - $64.45
Current price $64.45

1/2" x 5 Fl x 3" OAL x 1-1/4" LOC w/ Square Corner & Alcrona EVO Coating | Carbide End Mill

Star Tool Inc
10 in stock

Diameter - 1/2" Flutes - 5 Overall Length - 3" Length of Cut - 1.250" Radius - Square Corner Coating - AlCrN

Original price $64.45 - Original price $64.45
Original price
$64.45
$64.45 - $64.45
Current price $64.45
Original price $134.85 - Original price $134.85
Original price
$134.85
$134.85 - $134.85
Current price $134.85

3/4" x 5 Fl x 4" OAL x 1-5/8" LOC w/ Square Corner & Alcrona EVO Coating | Carbide End Mill

Star Tool Inc
10 in stock

Diameter - 3/4" Flutes - 5 Overall Length - 4" Length of Cut - 1.625" Radius - Square Corner Coating - AlCrN

Original price $134.85 - Original price $134.85
Original price
$134.85
$134.85 - $134.85
Current price $134.85

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YOUR CUTTING EDGE SINCE 1966

YOUR CUTTING EDGE SINCE 1966

Proudly Manufactured in Wichita, KS