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4 Flute • END MILLS
79

4 Flute Solid Carbide Variable Helix nACo Coated Single End Mills
Center Cutting • Corner Radius

Increased metal removal
in less machining time

Benefits: APPLiCAtiOns:
• Front to back helix increase for high • For chatterless machining of ferrous
shearing action in multiple materials. materials in slotting, profiling or
• Chatter free machining with pocketing applications.
exceptional harmonics. • Plunge slotting, profiling and finishing.
• Increased feed and speed rates with • Good for most materials.
exceptional wear ability.

HELIx cHaNgES aLoNg tHE
fLutES, INcrEaSINg StabILIty
TolErAnCES:
Cutting Diameter: +.000" / -.002"
SHAnk FluTE oVErAll feAtures:
SizE DiAMETEr lEnGTH lEnGTH rADiuS orDEr PriCE
D1 # EACH • One of the premier nomenclatures in the business.
D2 l2 l1 • There are several styles or designs for this tool that are sufficient in many
1/8" 1/8" 1/2" 1-1/2" 0.015" 28-500-060 $15.44 different materials.
1/4" 1/4" 1/2" 2" 0.02" 28-500-066 29.86 • Our design has the broadest range and performs the best in a majority of materials.
1/4" 1/4" 3/4" 2-1/2" 0.02" 28-500-068 32.95 • The helix changes along the flutes which give the mill increased stability during the
5/16" 5/16" 1/2" 2" 0.02" 28-500-072 40.43 cutting action.
3/8" 3/8" 5/8" 2" 0.02" 28-500-078 47.88
3/8" 3/8" 1" 2-1/2" 0.02" 28-500-080 51.49 • Substantial increases in speeds can be achieved with this design which should
7/16" 7/16" 1" 2-3/4" 0.02" 28-500-084 66.94 produce more parts faster with equal to better wear ability.
1/2" 1/2" 5/8" 2-1/2" 0.03" 28-500-086 70.03 • Small corner radius for added strength to the corners and a smoother overall
1/2" 1/2" 1" 3" 0.03" 28-500-088 71.06 cutting action.
5/8" 5/8" 3/4" 3" 0.035" 28-500-094 106.08
3/4" 3/4" 1" 3" 0.035" 28-500-100 175.09
1" 1" 1-1/2" 4" 0.035" 28-500-106 308.99
Tuff Cut Xr 4 Flute Heli-Pitch Geometry Solid Carbide Altima Coated Single End Mills
®
®
Center Cutting • Stub Length • Regular Length • Long Length • 35° To 38° Helix
Designed for
EXTREME productivity
TolErAnCES:
Cutting Diameter:
1/16"-1/4" +.000" / -.002"
>1/4"-1" +.000" / -.003"
[177]
SHAnk FluTE oVErAll CornEr orDEr PriCE
SizE
DiAMETEr lEnGTH lEnGTH rADiuS # EACH
1/8" 1/8" 1/8" 1-1/2" — 20-403-020 $19.23
1/8" 1/8" 3/8" 1-1/2" — 20-403-024 20.49
1/8" 1/8" 3/8" 1-1/2" .015" 20-403-026 21.33
5/32" 3/16" 7/16" 2" — 20-403-034 28.90
3/16" 3/16" 3/16" 2" .015" 20-403-048 25.64
3/16" 3/16" 7/16" 2" — 20-403-052 28.27 APPLiCAtiOns: feAtures:
3/16" 3/16" 7/16" 2" .015" 20-403-054 29.63 • Designed for efficient general • Unique heli-pitch geometry
1/4" 1/4" 1/4" 2" — 20-403-088 32.52 purpose milling of steels, cast irons reduces harmonics at increased feeds
1/4" 1/4" 1/2" 2-1/2" — 20-403-094 34.62 and most other materials. and speeds.
1/4" 1/4" 1/2" 2-1/2" .015" 20-403-096 36.09 • Ideal for tough materials or • Can run faster than high speed
1/4" 1/4" 1/2" 2-1/2" .030" 20-403-098 36.09 abrasive work. steel or cobalt because of their high
5/16" 5/16" 13/16" 2-1/2" — 20-403-112 47.38 heat resistance.
3/8" 3/8" 7/8" 2-1/2" — 20-403-142 57.00 • Strong cutting edges allowing for
3/8" 3/8" 7/8" 2-1/2" .015" 20-403-144 59.84 increased depths of cut at elevated
1/2" 1/2" 1" 3" — 20-403-208 93.19 cutting speeds and feeds.
1/2" 1/2" 1" 3" .015" 20-403-210 97.87
1/2" 1/2" 1" 3" .030" 20-403-212 97.87
1/2" 1/2" 1-1/4" 3" .030" 20-403-224 99.82
3/4" 3/4" 1-1/2" 4" — 20-403-292 229.02
3/4" 3/4" 1-1/2" 4" .030" 20-403-296 241.01

Get a grip on your cutting applications with Techniks tooling.
®
See pages 798-799.