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High-Performance Solid Carbide End Mills • VariMill ™
Series 4778 • VariMill I ™
• Unequal flute spacing.
• Centre cutting.
• Optimised geometry for titanium
machining.
• Single tool for both roughing and finishing
operations requiring fewer setups.
• Standard items listed. Additional styles
and coatings made-to-order.
End Mill Tolerances
D1 tolerance e8 D tolerance h6
+ / -
) 3 -0,014/-0,028 ) 3 0/-0,006
> 3–6 -0,020/-0,038 > 3–6 0/-0,008
> 6–10 -0,025/-0,047 > 6–10 0/-0,009
> 10–18 -0,032/-0,059 > 10–18 0/-0,011
> 18–30 -0,040/-0,073 > 18–30 0/-0,013
grade
AlTiN-MT
AlTiN-MT
AlTiN
order #
O6
catalogue #
 first choice
 alternate choice
grade
AlTiN-MW
AlTiN-MW
AlTiN
order #
catalogue #
D1
D
length of cut
Ap1 max
length
L
R¡
2545563 477804002MT 3592826 477804002MW 4,0 6 12,00 55 0,20
2545564 477805002MT 3592827 477805002MW 5,0 6 13,00 57 0,20
2545565 477806002MT 3592828 477806002MW 6,0 6 13,00 57 0,20
2545570 477807003MT 3592829 477807003MW 7,0 8 16,00 63 0,20
2545603 477808003MT 3592830 477808003MW 8,0 8 16,00 63 0,20
2545605 477809004MT 3592831 477809004MW 9,0 10 19,00 72 0,20
2601245 477810004MT 3592832 477810004MW 10,0 10 22,00 72 0,30
2601246 477812005MT 3592833 477812005MW 12,0 12 26,00 83 0,30
2601248 477814014MT 3592834 477814014MW 14,0 14 26,00 83 0,30
2601249 477816006MT 3592835 477816006MW 16,0 16 32,00 92 0,30
2601250 477818018MT 3592836 477818018MW 18,0 18 32,00 92 0,30
2601251 477820007MT 3592837 477820007MW 20,0 20 38,00 104 0,30
2601252 477825008MT 3592838 477825008MW 25,0 25 45,00 121 0,30
widia.com
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Series 4778 • VariMill