4FL | Chip Breaker | Radius

Solid carbide end mills for ferrous and non-ferrous materials

Tool Features

Carbide, 30° Helix, 4FL, Corner Radius, Chip Breaker, Bright, AlTiN

Series 2140 Overview

  • Sub-micron grade carbide substrate for wear resistance
  • Designed for heavy material removal applications where cycle times are critical
  • Chip breaker profile creates smaller chips for less edge build up and lower power usage
  • Stocked Bright and AlTiN
  • Diameter Tol.: +0/-0.002"
  • Shank Tol.: +0/-0.0004"

Series Lineup

Attacker

Series 2142

3 Flute Chip Breaker End Mill

Carbide, 30° Helix, 3FL, Corner Radius, Chip Breaker, Bright, AlTiN

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

H1

Attacker

Series 2143

3 Flute Chip Breaker Ball Nose End Mill

Carbide, 30° Helix, 3FL, Ball Nose, Chip Breaker, Bright, AlTiN

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

H1

Attacker

Series 2140

4 Flute Chip Breaker End Mill

Carbide, 30° Helix, 4FL, Corner Radius, Chip Breaker, Bright, AlTiN

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

H1

Attacker

Series 2141

4 Flute Chip Breaker Ball Nose End Mill

Carbide, 30° Helix, 4FL, Ball Nose, Chip Breaker, Bright, AlTiN

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

H1


Work Materials

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

H1

Product Offering

Part Number cut_dia_in_display loc_in_display oal_in_display shank_dia_in_display radius_in_display coating Stock List Price
257-100112 (1) 1 (1.500) 1-1/2 (4.00) 4 (1) 1 0.02 Bright 67 $284.4
257-100115 (1) 1 (1.500) 1-1/2 (4.00) 4 (1) 1 0.02 AlTiN 23 $329.61
257-125500 (.1250) 1/8 (.5000) 1/2 (1.500) 1-1/2 (.1250) 1/8 0.01 Bright 4 $20.44
257-125503 (.1250) 1/8 (.5000) 1/2 (1.500) 1-1/2 (.1250) 1/8 0.01 AlTiN 25 $24.08
257-187625 (.1875) 3/16 (.6250) 5/8 (2.00) 2 (.1875) 3/16 0.01 Bright 71 $24.57
257-187628 (.1875) 3/16 (.6250) 5/8 (2.00) 2 (.1875) 3/16 0.01 AlTiN 78 $29.24
257-250750 (.2500) 1/4 (.7500) 3/4 (2.500) 2-1/2 (.2500) 1/4 0.01 Bright 30 $30.03
257-250753 (.2500) 1/4 (.7500) 3/4 (2.500) 2-1/2 (.2500) 1/4 0.01 AlTiN 20 $37.1
257-312812 (.3125) 5/16 (.8125) 13/16 (2.500) 2-1/2 (.3125) 5/16 0.01 Bright 200 $34.88
257-312815 (.3125) 5/16 (.8125) 13/16 (2.500) 2-1/2 (.3125) 5/16 0.01 AlTiN 33 $47.92
257-375875 (.3750) 3/8 (1) 1 (2.500) 2-1/2 (.3750) 3/8 0.015 Bright 9 $39.7
257-375878 (.3750) 3/8 (1) 1 (2.500) 2-1/2 (.3750) 3/8 0.015 AlTiN 82 $52.76
257-437100 (.4375) 7/16 (1) 1 (2.750) 2-3/4 (.4375) 7/16 0.015 Bright 127 $50.61
257-437103 (.4375) 7/16 (1) 1 (2.750) 2-3/4 (.4375) 7/16 0.015 AlTiN 45 $66.94
257-500100 (.5000) 1/2 (1) 1 (3.00) 3 (.5000) 1/2 0.015 Bright 643 $69.93
257-500103 (.5000) 1/2 (1) 1 (3.00) 3 (.5000) 1/2 0.015 AlTiN 81 $86.27
257-625114 (.6250) 5/8 (1.250) 1-1/4 (3.500) 3-1/2 (.6250) 5/8 0.02 Bright 290 $122.15
257-625117 (.6250) 5/8 (1.250) 1-1/4 (3.500) 3-1/2 (.6250) 5/8 0.02 AlTiN 29 $148.47
257-750112 (.7500) 3/4 (1.500) 1-1/2 (4.00) 4 (.7500) 3/4 0.02 Bright 253 $183.28
257-750115 (.7500) 3/4 (1.500) 1-1/2 (4.00) 4 (.7500) 3/4 0.02 AlTiN 15 $214.63