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
257-125500 (.1250) 1/8 (.5000) 1/2 (1.500) 1-1/2 (.1250) 1/8 0.01 Bright 81 $19.28
257-125503 (.1250) 1/8 (.5000) 1/2 (1.500) 1-1/2 (.1250) 1/8 0.01 AlTiN 30 $22.72
257-187625 (.1875) 3/16 (.6250) 5/8 (2.00) 2 (.1875) 3/16 0.01 Bright 171 $23.18
257-187628 (.1875) 3/16 (.6250) 5/8 (2.00) 2 (.1875) 3/16 0.01 AlTiN 15 $27.58
257-250750 (.2500) 1/4 (.7500) 3/4 (2.500) 2-1/2 (.2500) 1/4 0.01 Bright 117 $28.33
257-250753 (.2500) 1/4 (.7500) 3/4 (2.500) 2-1/2 (.2500) 1/4 0.01 AlTiN 54 $35.00
257-312812 (.3125) 5/16 (.8125) 13/16 (2.500) 2-1/2 (.3125) 5/16 0.01 Bright 242 $32.90
257-312815 (.3125) 5/16 (.8125) 13/16 (2.500) 2-1/2 (.3125) 5/16 0.01 AlTiN 45 $45.21
257-375875 (.3750) 3/8 1 (2.500) 2-1/2 (.3750) 3/8 0.015 Bright 150 $37.45
257-375878 (.3750) 3/8 1 (2.500) 2-1/2 (.3750) 3/8 0.015 AlTiN 58 $49.77
257-437100 (.4375) 7/16 1 (2.750) 2-3/4 (.4375) 7/16 0.015 Bright 167 $47.74
257-437103 (.4375) 7/16 1 (2.750) 2-3/4 (.4375) 7/16 0.015 AlTiN 85 $63.16
257-500100 (.5000) 1/2 1 (3.00) 3 (.5000) 1/2 0.015 Bright 673 $65.97
257-500103 (.5000) 1/2 1 (3.00) 3 (.5000) 1/2 0.015 AlTiN 194 $81.39
257-625114 (.6250) 5/8 (1.250) 1-1/4 (3.500) 3-1/2 (.6250) 5/8 0.02 Bright 295 $115.23
257-625117 (.6250) 5/8 (1.250) 1-1/4 (3.500) 3-1/2 (.6250) 5/8 0.02 AlTiN 50 $140.07
257-750112 (.7500) 3/4 (1.500) 1-1/2 (4.00) 4 (.7500) 3/4 0.02 Bright 268 $172.90
257-750115 (.7500) 3/4 (1.500) 1-1/2 (4.00) 4 (.7500) 3/4 0.02 AlTiN 26 $202.48