Page 683 - YG 2019

4G MILL 4G MILL
END MILLS GMF20 SERIES PLAIN SHANK END MILLS GMF21 SERIES PLAIN SHANK

CARBIDE, 4 FLUTE CORNER RADIUS CARBIDE, 4 FLUTE CORNER RADIUS WITH NECK

▶ New coating and new tool geometry gives outstanding cutting performance and wear resistance. ▶ New coating and new tool geometry gives outstanding cutting performance and wear resistance.
▶ Excellent performance when cutting steels, up to HRc55 ▶ Excellent performance when cutting steels, up to HRc55
▶ Available in many more various length shanks and corner radiuses. ▶ Due to Multiple Helix on 1/8" and over diameter end mills, vibration is minimized and tool life increased.
▶ Due to Multiple Helix on 1/8" and over diameter end mills, vibration is minimized and tool life increased. ▶ 4 flute series has new designs to reduce vibrations
▶ 4 flute series has new designs to reduce vibrations
R R R R
↙ ↙ D3
D2 D1 D2 D1
L1
L1 L3
L2 L2

27º/30º P.801 27º/30º P.802
D1<Ø1/8, 30˚ Helix D1<Ø1/8, 30˚ Helix
Unit : Inch Unit : Inch
Corner Mill Shank Length Overall Corner Mill Shank Length Length Overall Neck
EDP No. Radius Diameter Diameter of Cut Length EDP No. Radius Diameter Diameter of Cut Below Shank Length Diameter
R D1 D2 L1 L2 R D1 D2 L1 L3 L2 D3
GMF20024 R.020 3/8 3/8 1 3 GMF21003 R.004 3/64 3/16 1/16 5/32 2 .044
GMF20939 R.030 3/8 3/8 1 3 GMF21901 R.004 3/64 3/16 1/16 1/4 2 .044
GMF20919 R.012 3/8 3/8 1 4 GMF21902 R.004 3/64 3/16 1/16 5/16 2 .044
GMF20920 R.020 3/8 3/8 1 4 GMF21903 R.008 3/64 3/16 1/16 5/32 2 .044
GMF20940 R.030 3/8 3/8 1 4 GMF21904 R.008 3/64 3/16 1/16 1/4 2 .044
GMF20921 R.040 3/8 3/8 1 4 GMF21905 R.008 3/64 3/16 1/16 5/16 2 .044
GMF20922 R.060 3/8 3/8 1 4 GMF21906 R.012 3/64 3/16 1/16 5/32 2 .044
GMF20923 R.080 3/8 3/8 1 4 GMF21907 R.012 3/64 3/16 1/16 1/4 2 .044
GMF20032 R.020 1/2 1/2 1-3/16 3-1/8 GMF21908 R.012 3/64 3/16 1/16 5/16 2 .044
GMF20924 R.040 1/2 1/2 1-3/16 3-1/8 GMF21004 R.004 1/16 3/16 3/32 1/4 2 .060
GMF20925 R.020 1/2 1/2 1-3/16 4-1/4 GMF21909 R.004 1/16 3/16 3/32 5/16 2 .060
GMF20941 R.030 1/2 1/2 1-3/16 3-1/8 GMF21910 R.004 1/16 3/16 3/32 3/8 2 .060
GMF20942 R.030 1/2 1/2 1-3/16 4-1/4 GMF21911 R.004 1/16 3/16 3/32 1/2 2 .060
GMF20926 R.040 1/2 1/2 1-3/16 4-1/4 GMF21912 R.008 1/16 3/16 3/32 1/4 2 .060
GMF20927 R.060 1/2 1/2 1-3/16 4-1/4 GMF21913 R.008 1/16 3/16 3/32 5/16 2 .060
GMF20928 R.080 1/2 1/2 1-3/16 4-1/4 GMF21914 R.008 1/16 3/16 3/32 3/8 2 .060
GMF20040 R.020 5/8 5/8 1-1/4 6 GMF21915 R.008 1/16 3/16 3/32 1/2 2 .060
GMF20943 R.030 5/8 5/8 1-1/4 6 GMF21916 R.012 1/16 3/16 3/32 1/4 2 .060
GMF20929 R.040 5/8 5/8 1-1/4 6 GMF21917 R.012 1/16 3/16 3/32 5/16 2 .060
GMF20930 R.060 5/8 5/8 1-1/4 6 GMF21918 R.012 1/16 3/16 3/32 3/8 2 .060
GMF20931 R.080 5/8 5/8 1-1/4 6 GMF21919 R.012 1/16 3/16 3/32 1/2 2 .060
GMF20944 R.030 3/4 3/4 1-1/2 6 GMF21920 R.020 1/16 3/16 3/32 1/4 2 .060
GMF20048 R.040 3/4 3/4 1-1/2 6 GMF21921 R.020 1/16 3/16 3/32 5/16 2 .060
GMF20932 R.080 3/4 3/4 1-1/2 6 GMF21922 R.020 1/16 3/16 3/32 3/8 2 .060
GMF21923 R.020 1/16 3/16 3/32 1/2 2 .060
Mill Dia. Corner Radius Shank Dia. GMF21005 R.004 5/64 3/16 1/8 1/4 2 .076
Tolerance (Inch) Tolerance (Inch) Tolerance GMF21924 R.004 5/64 3/16 1/8 5/16 2 .076
0~-.0012 ±.0008 h6 GMF21925 R.004 5/64 3/16 1/8 3/8 2 .076
GMF21926 R.004 5/64 3/16 1/8 1/2 2 .076
GMF21927 R.008 5/64 3/16 1/8 1/4 2 .076
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◎ : Excellent ◯ : Good ◎ : Excellent ◯ : Good
P H M K N S P H M K N S
Carbon Alloy Prehardened High Hardened High Carbon Alloy Prehardened High Hardened High
Steels Steels Steels Hardened Steels Steels Stainless Cast Copper Graphite Aluminum Acrylic CFRP Titanium Temperature Steels Steels Steels Hardened Steels Steels Stainless Cast Copper Graphite Aluminum Acrylic CFRP Titanium Temperature
Iron
Steels
Steels
Iron
~HB225 HB225~325 HRc30~40 HRc40~45 HRc45~55 HRc55~70 Alloy ~HB225 HB225~325 HRc30~40 HRc40~45 HRc45~55 HRc55~70 Alloy
◎ ◎ ◎ ◎ ○ ○ ◎ ◎ ◎ ◎ ○ ○
682 • phone:+1-800-765-8665, Technical Support : 888-868-5988, www.yg1usa.com phone:+1-800-765-8665, Technical Support : 888-868-5988, www.yg1usa.com • 683