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3&4 Flutes 45 Helix Fine Pitch Roughing End Mills

3&4 45

HARD series Roughing Endmills for hard to cut materials, alloy steel,
SUS, Inconel and structural steel.
JCRO coating provides wear resistance improvement as well as
avoid edge stress in various applications.
Long tool life with low cutting force by 45 degree helix design.
Fine pitch shape design for high speed roughing application.

D Size D Tolerance

4 ~ 9 -0.02 ~ -0.04mm

0.02 0.04 0.02 0.05 10 ~ 20 -0.02 ~ -0.05mm
4~9 10 ~ 20
Shield Edge mm

Order Number Diameter Length Overall Shank
of cut Length Dia
3HROU 040 100 S06 D L1 d
3HROU 050 130 S06 L
3HROU 060 100 050 4 10 6
3HROU 060 160 055 5 13 50 6
3HROU 060 200 060 6 10 50 6
3HROU 070 180 S08 6 16 50 6
3HROU 080 120 060 6 20 55 6
3HROU 080 190 065 7 18 60 8
3HROU 080 250 070 8 12 65 8
New 3HROU 080 300 075 8 19 60 8
4HROU 090 220 S10 8 25 65 8
4HROU 100 150 070 8 30 70 8
4HROU 100 220 070 9 22 75 10
4HROU 100 300 080 10 15 70 10
New 4HROU 100 400 090 10 22 70 10
4HROU 110 270 S12 10 30 70 10
4HROU 120 200 075 10 40 80 10
4HROU 120 250 080 11 27 90 12
4HROU 120 350 090 12 20 80 12
New 4HROU 120 500 100 12 25 75 12
4HROU 160 320 090 12 35 80 12
4HROU 160 400 110 12 50 90 12
4HROU 200 380 110 16 32 100 16
4HROU 200 500 120 16 40 90 16
20 38 110 20
20 50 110 20
120

81 JJ TOOLS