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Cutting Tools
1
Design:
DIN 8378, 90° countersink angle.
Application:
For thread core holes according to DIN 336, part 1 and 90° free
countersinking corresponding with the through-holes according to DIN EN 20273.
Order
No.
Steels
up to
850
N/mm
2
Steels
up to
1000
N/mm
2
Steels
up to
1400
N/mm
2
Steels
up to
42 HRC
Steels
up to
52 HRC
Steels
up to
56 HRC
Steels
up to
60 HRC
Hard
machining
over
60 HRC
Stainless
and acid-
resistant
steels (INOX)
Ti steels,
Ti alloys,
special
steels
Cast iron
materials
Al, Al and
Mg alloys
Copper,
brass,
bronze
1109
30
16
8
30
50
50
1112
30
16
8
30
50
50
1115
30
16
8
30
50
50
Order
No.
For tapped
holes
1109
steam
Drill ∅ d
1
x
countersink ∅ d
2
mm
Overall
length l
1
mm
Spiral
length I
2
mm
Drill step
length l
3
mm
0030
M3
16.00
2.5 x 3.4
70
39
8.8
0040
M4
17.45
3.3 x 4.5
80
47
11.4
0050
M5
17.85
4.2 x 5.5
93
57
13.6
0060
M6
24.00
5.0 x 6.6
101
63
16.5
0080
M8
29.70
6.8 x 9.0
125
81
21.0
0100
M10
36.50
8.5 x 11.0
142
94
25.5
0120
M12
38.00
10.2 x 13.5
160
108
30.0
(W104)
90° multiple twist stepped drill for core holes
With Morse taper Shank DIN 8379 or VHM design available on request.
DIN
8378
steam
Design:
DIN 8376, 180° countersink angle, medium.
Application:
For screw through-holes according to DIN EN 20273 and 180° screw head
countersinking. Form H, J and K according to DIN 84, DIN 912, DIN 6912, DIN 7513 and DIN 7984.
Order
No.
For tapped
holes
1115
steam
Drill ∅ d
1
x
countersink ∅ d
2
mm
Overall
length l
1
mm
Spiral
length I
2
mm
Drill step
length l
3
mm
0030
M3
19.40
3.4 x 6
93
57
9
0040
M4
22.50
4.5 x 8
117
75
11
0050
M5
27.30
5.5 x 10
133
87
13
0060
M6
31.50
6.6 x 11
142
94
15
0080
M8
39.60
9.0 x 15
169
114
19
0100
M10
82.30
11.0 x 18
191
130
23
(W104)
180° multiple twist stepped drill for through-holes
With Morse taper Shank DIN 8377 or VHM design available on request.
DIN
8376
steam
Design:
HSS, type N.
Profile grinding, steam tempered surface, right cutting, with precise point geometry. Point
thinning according to DIN 1412, form A. Normal angle of rake, core thickness and core
gradient. Drilling and countersinking are produced in a single step, aligned to each other.
∅ tolerance: d
1
= h9
d
2
= h8
Note:
The cutting speed is orientated towards the large diameter, the feed towards the small
diameter.
Multiple twist stepped drill with cyl. Shank
HSS
Type
N
118°
25–30°
Design:
DIN 8374, 90° countersink angle, fine.
Application:
For screw through-holes according to DIN EN 20273 and 90° screw head
countersinking. Form A and B according to DIN 74, part 1. For screws according to DIN 963
and DIN 964.
Order
No.
For tapped
holes
1112
steam
Drill ∅ d
1
x
countersink ∅ d
2
mm
Overall
length l
1
mm
Spiral
length I
2
mm
Drill step
length l
3
mm
0030
M3
19.30
3.2 x 6.0
93
57
9
0040
M4
22.30
4.3 x 8.0
117
75
11
0050
M5
28.20
5.3 x 10.0
133
87
13
0060
M6
31.60
6.4 x 11.5
142
94
15
0080
M8
52.60
8.4 x 15.0
169
114
19
0100
M10
81.10
10.5 x 19.0
198
135
23
(W104)
90° multiple twist stepped drill for through-holes
With Morse taper Shank DIN 8375 available on request.
DIN
8374
steam
Drilling tools
70