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Mill 4™ - 90° SHOULDER MILLING TO THE EXTREME

The Mill 4 Series is specially engineered to achieve excellent surface quality and higher metal removal rates in shoulder milling applications. Its unique design allows you to apply the tool in multiple passes (step down) with outstanding results. From roughing to finishing operations, the Mill 4 series is applicable in a wide range of workpiece materials: steel, cast iron, stainless steel, non-ferrous materials, and high-temp alloys.

Double-sided strong insert with 4 cutting edges.

High positive geometry for lower cutting forces.

Superior wall and surface finish capabilities.

Comprehensive offering to cover all applications in all material groups.

 

Part of the First Choice Program.

Easy to select, easy to order, easy to apply, exceptional performance. Learn more about First Choice:

STEPLESS SOLUTIONS

A challenge with step down applications is that most tools leave tool marks with every pass they take, resulting in unsatisfactory or low quality wall finishes, which require another finishing pass at the very end of the process.

Applying Mill 4™ delivers pristine wall finishes, and eliminates that finishing pass with an additional tool. That saves you time and reduces your production cost.

Mill 4 vs. Others
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Mill 4™ Series

Mill 4™ Series 1 1/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max]

Mill 4™ Series

Cylindrical End Mills • Mill 4-11™

ISO - M4D125L1105C100L500
ANSI - M4D125L1105C100L500
Grade - N/A
Product # 6201904
Web Title ISO ANSI First Choice Product #
Mill 4™ Series 1" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D100L1104C075L450 M4D100L1104C075L450 Yes 6201903
Mill 4™ Series 1 1/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D125L1105C125L500 M4D125L1105C125L500 Yes 6140058
Mill 4™ Series 1" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D100L1103C100L700 M4D100L1103C100L700 Yes 6140057
Mill 4™ Series 1" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D100L1104C100L450 M4D100L1104C100L450 Yes 6140056
Mill 4™ Series 3/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D075L1102C075L600 M4D075L1102C075L600 Yes 6140055
See all additional sizes and grades

Mill 4™ Series

Mill 4™ Series KCSM40

Mill 4™ Series

Indexable Inserts • Mill 4-11™

ISO - LNGU110408ERGE
ANSI - LNGU432ERGE
Grade - KCSM40
Product # 6201354
Web Title ISO ANSI First Choice Product #
Mill 4™ Series KCPM40 LNGU110412ERGE LNGU433ERGE Yes 6201353
Mill 4™ Series KCSM40 LNGU110412ERGE LNGU433ERGE Yes 6201351
Mill 4™ Series KCPM40 LNGU110408ERGE LNGU432ERGE Yes 6131543
Mill 4™ Series KC522M LNGU110408ERGE LNGU432ERGE Yes 6131542
Mill 4™ Series KC725M LNGU110408ERGE LNGU432ERGE Yes 6131541
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Mill 4™ Series

Mill 4™ Series KC422M

Mill 4™ Series

Indexable Inserts • Mill 4-11™

ISO - LNGU110404ERLEJ
ANSI - LNGU431ERLEJ
Grade - KC422M
Product # 6201292
Web Title ISO ANSI First Choice Product #
Mill 4™ Series KC422M LNGU110408ERLEJ LNGU432ERLEJ Yes 6131556
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Mill 4-11™

Mill 4-11™ KCSM40

Mill 4-11™

Indexable Inserts

ISO - LNGU110404SRGE
ANSI - LNGU431SRGE
Grade - KCSM40
Product # 6201291
Web Title ISO ANSI First Choice Product #
Mill 4-11™ KCPM40 LNGU110404SRGE LNGU431SRGE Yes 6201280
Mill 4-11™ KCSM40 LNGU110408SRGE LNGU432SRGE Yes 6165397
Mill 4-11™ KCK15 LNGU110408SRGE LNGU432SRGE Yes 6132026
Mill 4-11™ KCPK30 LNGU110408SRGE LNGU432SRGE Yes 6132025
Mill 4-11™ KC725M LNGU110408SRGE LNGU432SRGE Yes 6132024
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Mill 4™ Series

Mill 4™ Series KCPM40

Mill 4™ Series

Indexable Inserts • Mill 4-11

ISO - LNGU110416SRGEM
ANSI - LNGU434SRGEM
Grade - KCPM40
Product # 6201022
Web Title ISO ANSI First Choice Product #
Mill 4™ Series KC520M LNGU110416SRGEM LNGU434SRGEM Yes 6201021
Mill 4™ Series KCPK30 LNGU110416SRGEM LNGU434SRGEM Yes 6200730
Mill 4™ Series KCPM40 LNGU110408SRGEM LNGU432SRGEM Yes 6131606
Mill 4™ Series KC522M LNGU110408SRGEM LNGU432SRGEM Yes 6131605
Mill 4™ Series KC520M LNGU110408SRGEM LNGU432SRGEM Yes 6131604
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Mill 1-10™ Helical

Mill 1-10™ KCSM40

Mill 1-10™ Helical

Indexable Inserts

ISO - EDCT10T331PDERLD
ANSI - EC1031ELD
Grade - KCSM40
Product # 6176100
Web Title ISO ANSI First Choice Product #
Mill 1-10™ KCSM40 EDCT10T324PDERLD EC1024ELD Yes 6176099
Mill 1-10™ KCSM40 EDCT10T316PDERLD EC1016ELD Yes 6176098
Mill 1-10™ KCSM40 EDCT10T312PDERLD EC1012ELD Yes 6176097
Mill 1-10™ KCSM40 EDCT10T308PDERLD EC1008ELD Yes 6176096
Mill 1-10™ KC725M EDCT10T302PDERLD EC1002ELD Yes 3959611
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Shoulder Mills

Mill 1-10™ KCSM40

Shoulder Mills

Mill 1-10™ Inserts

ISO - EDPT10T331PDERHD
ANSI - EP1031EHD
Grade - KCSM40
Product # 6176091
Web Title ISO ANSI First Choice Product #
Mill 1-10™ KCSM40 EDPT10T324PDERHD EP1024EHD Yes 6175760
Mill 1-10™ KCSM40 EDPT10T320PDERHD EP1020EHD Yes 6175759
Mill 1-10™ KCSM40 EDPT10T316PDERHD EP1016EHD Yes 6175758
Mill 1-10™ KCSM40 EDPT10T312PDERHD EP1012EHD Yes 6175757
Mill 1-10™ KCSM40 EDPT10T308PDERHD EP1008EHD Yes 6175756
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Mill 1-14™

Mill 1-14™ KCSM40

Mill 1-14™

Indexable Inserts

ISO - EDPT140416PDSRGD
ANSI - EP1416SGD
Grade - KCSM40
Product # 6172191
Web Title ISO ANSI First Choice Product #
Mill 1-14™ KCSM40 EDPT140412PDSRGD EP1412SGD Yes 6172130
Mill 1-14™ KCSM40 EDPT140408PDSRGD EP1408SGD Yes 6172129
Mill 1-14™ KCPM40 EDPT140416PDSRGD EP1416SGD Yes 6128135
Mill 1-14™ KCPM40 EDPT140408PDSRGD EP1408SGD Yes 6128133
Mill 1-14™ KCPM40 EDPT140412PDSRGD EP1412SGD Yes 5545066
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Mill 1-14™

Mill 1-14™ KCSM40

Mill 1-14™

Indexable Inserts

ISO - EDPT140440PDERHD
ANSI - EP1440EHD
Grade - KCSM40
Product # 6172128
Web Title ISO ANSI First Choice Product #
Mill 1-14™ KCSM40 EDPT140431PDERHD EP1431EHD Yes 6172127
Mill 1-14™ KCSM40 EDPT140424PDERHD EP1424EHD Yes 6172126
Mill 1-14™ KCSM40 EDPT140420PDERHD EP1420EHD Yes 6172125
Mill 1-14™ KCSM40 EDPT140416PDERHD EP1416EHD Yes 6172124
Mill 1-14™ KCSM40 EDPT140412PDERHD EP1412EHD Yes 6172123
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Mill 1-14™

Mill 1-14™ KCSM40

Mill 1-14™

Indexable Inserts

ISO - EDCT140431PDERGD
ANSI - EC1431EGD
Grade - KCSM40
Product # 6171591
Web Title ISO ANSI First Choice Product #
Mill 1-14™ KCSM40 EDCT140416PDERGD EC1416EGD Yes 6171520
Mill 1-14™ KCSM40 EDCT140412PDERGD EC1412EGD Yes 6171519
Mill 1-14™ KCSM40 EDCT140408PDERGD EC1408EGD Yes 6171518
Mill 1-14™ KCPM40 EDCT140404PDERGD EC1404EGD Yes 5545068
Mill 1-14™ KCPM40 EDCT140408PDERGD EC1408EGD Yes 5545067
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Mill 4™ Series

Mill 4™ Series KCSM40

Mill 4™ Series

Indexable Inserts • Mill 4-15™

ISO - LNGU15T612ERGE
ANSI - LNGU543ERGE
Grade - KCSM40
Product # 6165423
Web Title ISO ANSI First Choice Product #
Mill 4™ Series KCSM40 LNGU15T608ERGE LNGU542ERGE Yes 6165422
Mill 4™ Series KCPM40 LNGU15T616ERGE LNGU544ERGE Yes 5627871
Mill 4™ Series KC725M LNGU15T616ERGE LNGU544ERGE Yes 5627789
Mill 4™ Series KCPM40 LNGU15T612ERGE LNGU543ERGE Yes 5588519
Mill 4™ Series KC725M LNGU15T612ERGE LNGU543ERGE Yes 5588517
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Mill 4™ Series

Mill 4™ Series KCSM40

Mill 4™ Series

Indexable Inserts • Mill 4-15™

ISO - LNGU15T612SRGE
ANSI - LNGU543SRGE
Grade - KCSM40
Product # 6165421
Web Title ISO ANSI First Choice Product #
Mill 4™ Series KCSM40 LNGU15T608SRGE LNGU542SRGE Yes 6165400
Mill 4™ Series KCPK30 LNGU15T616SRGE LNGU544SRGE Yes 5627788
Mill 4™ Series KC725M LNGU15T616SRGE LNGU544SRGE Yes 5627786
Mill 4™ Series KC520M LNGU15T616SRGE LNGU544SRGE Yes 5627784
Mill 4™ Series KC725M LNGU15T604SRGE LNGU541SRGE Yes 5516075
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Mill 4™ Series

Mill 4™ Series 3" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max]

Mill 4™ Series

Shell Mills • Mill 4-11™

ISO - M4D300L1108S100L175
ANSI - M4D300L1108S100L175
Grade - N/A
Product # 6140063
Web Title ISO ANSI First Choice Product #
Mill 4™ Series 2 1/2" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D250L1107S075L157 M4D250L1107S075L157 Yes 6140062
Mill 4™ Series 2" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D200L1107S075L157 M4D200L1107S075L157 Yes 6140061
Mill 4™ Series 2" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D200L1105S075L157 M4D200L1105S075L157 Yes 6140060
Mill 4™ Series 1 1/2" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D150L1105S050L157 M4D150L1105S050L157 Yes 6140059
Mill 4™ Series 3" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D300L1108S125L175 M4D300L1108S125L175 Yes 6139924
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Mill 4™ Series

Mill 4™ Series 1 1/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max]

Mill 4™ Series

Weldon® End Mills • Mill 4-11™

ISO - M4D125L1104W125L225
ANSI - M4D125L1104W125L225
Grade - N/A
Product # 6140052
Web Title ISO ANSI First Choice Product #
Mill 4™ Series 1" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D100L1103W100L175 M4D100L1103W100L175 Yes 6140051
Mill 4™ Series 3/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D075L1103W075L110 M4D075L1103W075L110 Yes 6139930
Mill 4™ Series 3/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D075L1102W075L110 M4D075L1102W075L110 Yes 6139929
Mill 4™ Series 5/8" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D062L1102W062L100 M4D062L1102W062L100 Yes 6139928
Mill 4™ Series 1 1/2" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D150L1105W125L225 M4D150L1105W125L225 Yes 6139897
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Mill 4™ Series

Mill 4™ Series 1 1/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max]

Mill 4™ Series

Screw-On End Mills • Mill 4-11™

ISO - M4D125L1105M16L175
ANSI - M4D125L1105M16L175
Grade - N/A
Product # 6139895
Web Title ISO ANSI First Choice Product #
Mill 4™ Series 1" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D100L1104M12L125 M4D100L1104M12L125 Yes 6139894
Mill 4™ Series 3/4" Cutting Diameter [D1]. 0.4330" Maximum Cutting Depth [Ap1 max] M4D075L1103M10L110 M4D075L1103M10L110 Yes 6139893
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Mill 4™ Series

Mill 4™ Series KCPK30

Mill 4™ Series

Indexable Inserts • Mill 4-11™

ISO - LNPU110416SRGE
ANSI - LNPU434SRGE
Grade - KCPK30
Product # 6131560
Web Title ISO ANSI First Choice Product #
Mill 4™ Series KC725M LNPU110416SRGE LNPU434SRGE Yes 6131559
Mill 4™ Series KCPM40 LNPU110416SRGE LNPU434SRGE Yes 6131558
Mill 4™ Series KC520M LNPU110412SRGE LNPU433SRGE Yes 6131512
Mill 4™ Series KCK15 LNPU110408SRGE LNPU432SRGE Yes 6131507
Mill 4™ Series KC520M LNPU110408SRGE LNPU432SRGE Yes 6131506
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