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TAC Flash chamfering mills
ECC31
Chamfering Chamfering
Chamfering of hole
ø5mm ~
60° 45° 30°
Chamfering Chamfering Chamfering
Steel
Stainless
Cast Iron
For chamfering of general steels, stainless steels
and cast irons
Rake angle: A.R. —5˚~ —3˚ R.R. —15˚ ~ —10˚
øD1
øDc
ø5
A
κ
B
50
80
ø32 h6
The accuracy of κ : ±1°
Cat. No.
Stock
No. of
inserts
Dimensions (mm)
κ A B øD 1 øDc
Applicable
insert
Clamping screw
Wrench
ECC31005R-30
ECC31005R-45
ECC31005R-60
1
2
60˚ 14.5 25.5 40 34
45˚ 20.5 20.5 56 46
30˚ 25.5 14.5 72 55
XCET
310404ER
CSTB-5S
T-20D
Inserts
22
4.5
45°
2-r ε0.4
12.7
7°
Stock
Cat. No. Accuracy Honing
Coated Cermet Uncoated
AH330 NS740 NS530 UX30
XCET310404ER E With
Packing Quantity = 5 pcs.
9
Standard cutting conditions
Work materials
Carbon steels (C55 etc.)
Alloy steels (42CrMo4 etc.) < 300 HB
Die steels (X40CrMoV5-1 etc.) < 300 HB
Stainless steels (X5CrNi18-10 etc.) < 250 HB
Cast irons (GG25 etc.)
Grades
No. of revolutions: n (min -1 )
Feed per tooth: fz (mm/t)
NS740•NS530 1000 - 7000
UX30 700 - 4900
0.1 - 0.25
AH330 1000 - 7000 0.1 - 0.2
AH330 1000 - 7000 0.1 - 0.25
AH330 1000 - 7000 0.1 - 0.25
TAC Mills
Notes: • When the hole diameter to be chamfered is small or the cutting edges near the front end of
tool are used, use at higher side of the revolution range shown in the Table.
In contrast, when the hole diameter to be chamfered is large or the cutting edges far from the
tool's front end are used, use the lower side of the revolution range shown in the Table.
• When chamfering a small diameter hole (smaller than ø10 mm) in a plunge-milling mode,
peck-feeding should not be used.
• When the hole diameter to be chamfered is smaller than ø10 mm or the cutting edges near
the tool's front end are used, the feed should be set within 0.15 mm/t.
: Stocked items.
Technical Reference
(15-1)
9–127