COMPETENCE
IN PRECISION
STEP DRILLS
AND QUALITY
Step drills
Product information
1.4
The flutes of new RUKO high performance step drills are CBN ground from the solid hardened
form. Because CBN (cubical boron nitride) is a much harder abrasive than even silicium carbide
or corundum, a better and sharper cutting edge is achieved - without burrs. And, with higher
dimensional precision the drills will last considerably longer while maintaining the precise process tolerances.
1. CBN ground spiral flute
1. CBN ground spiral flutes enable very sharp and burr-free cutting edges compared to the ordinary milled flutes. Especially the chip flow is optimized, so even long, non-breaking chips will
be removed easily. The optimized chip flow protects the cutting edges and reduces built-up
edges and cold weld marks. Due to these special features, cutting performance and tool life
are extended significantly.
2. Each step has a radially adjusted relief produced by CBN grinding that relates directly to the
diameter of the step. This means the cutting edge is always the highest point of the diameter.
3. Each step is axially CBN relief ground. This means the cutting edge is always the highest point
of the axial cutting axis.
4. The cutting edge of each step has relief angle. This means the cutting edge is also the highest
point in advance direction.
5. The CBN ground bit ensures centering and spot-drilling even in thin-walled material.
2. Radially adjusted relief produced by
CBN grinding
Product application
1. The ideal tool for sheet metal working in the following sectors of industries: electrical (size 4 +
size 9), sanitary engineering and heating technics (size 6 + size 7) or automotive, mechanical
engineering, aviation (size 0/5, size 0/9, size 1, size 2, size 3, size 5) and switching systems
(size 0/9k, size 1k, size 2k) up to 2 mm sheet thickness.
3. Axially relief produced by CBN grinding
2. This tough tool is suitable for all standard industrial materials: nonferrous metal, special steel,
thermoplastics and duroplastics as well as sheet metals up to 4 mm thickness.
3. This durable and versatile tool will center, spot-drill, bore and debur - all in one smooth, high
performance working cycle.
4. By using RUKO cutting spray or RUKO cutting paste tool life will be considerably prolonged.
4. CBN ground relief angle
5. CBN ground bit with split point DIN 1412 C
- 56 -
Step drills
Step drills HSS, CBN ground, spiral fluted
with split point
Point cut:
Point- / Step angle:
Ø-tolerance:
Surface:
Right hand cutting
work´s specification
with split point
DIN 1412 C
118° / 90°
work´s specification
bright
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material.
Packing unit: in plastic tubes of 1
Size no.
0/5
0/9
1
2
3
4
5
6
7
8
9
10
11
12
13*
Drilling range
mm
Steps
65
65
75
100
100
75
107
75
69
80
100
54
65
76
105
5
9
9
14
12
8
13
8
7
9
12
5
7
9
16
Shank-Ø
mm
6
6
8
10
10
10
10
10
10
10
10
6
10
10
13
8,0 mm
10,0 mm
12,0 mm
Article no.
Ø mm
Point- / Step angle:
Ø-tolerance:
Surface:
Right hand cutting
work´s specification with
split point DIN 1412 C
118° / 90°
work´s specification
bright
Packing unit:
in plastic tubes of 1
Size no.
0/9
1
2
9
Drilling range
mm
Total length
mm
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
20,0 mm
No. 1
4,0 - 12,00
4,0 - 20,00
4,0 - 30,00
6,0 - 37,00
65
75
100
100
9
9
14
12
Shank-Ø
mm
6
8
10
10
Article no.
No. 2
Ø mm
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material.
Steps
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
20,0 mm
22,0 mm
24,0 mm
26,0 mm
28,0 mm
30,0 mm
Ø mm
101 050-5
101 050-9
101 051
101 052
101 053
101 055
101 056
101 057
101 058
101 098
101 060
101 094
101 095
101 096
101 097
6,0 mm
9,0 mm
13,0 mm
16,0 mm
19,0 mm
21,0 mm
23,0 mm
26,0 mm
29,0 mm
32,0 mm
35,0 mm
38,0 mm
No. 3
Ø mm
6,0 mm
9,0 mm
11,4 mm
14,0 mm
17,25 mm
19,0 mm
21,25 mm
26,75 mm
Point- / Step angle:
Ø-tolerance:
Surface:
Right hand cutting
work´s specification
with split point
DIN 1412 C
118° / 90°
work´s specification
titanium-nitride coated
Packing unit: in plastic tubes of 1
101 050-9 E
101 051 E
101 052 E
101 060 E
Size no.
Drilling range
mm
Total length
mm
Steps
Shank-Ø
mm
Article no.
0/9
1
2
9
4,0 - 12,00
4,0 - 20,00
4,0 - 30,00
6,0 - 37,00
65
75
100
100
9
9
14
12
6
8
10
10
101 050-9 T
101 051 T
101 052 T
101 060 T
* straight fluted
- 57 -
7
9
11
13,5
16
21
Ø mm
4,0 mm
6,0 mm
9,0 mm
12,0 mm
15,0 mm
18,0 mm
21,0 mm
24,0 mm
27,0 mm
30,0 mm
33,0 mm
36,0 mm
39,0 mm
Price / each
€
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material.
PG
No. 4
Ø mm R
6,0 mm
9,0 mm
11,2 mm
14,5 mm
18,2 mm
22,3 mm
27,9 mm
32,0 mm
Step drills HSS-TiN, CBN ground, spiral fluted
with split point
Point cut:
1.4
No. 0/9
Price / each
€
Step drills HSS Co 5, CBN ground, spiral fluted
with split point
Point cut:
Ø mm
4,0 mm
5,0 mm
6,0 mm
7,0 mm
8,0 mm
9,0 mm
10,0 mm
11,0 mm
12,0 mm
6,0 mm
No. 0/5
Total length
mm
4,0 - 12,00
4,0 - 12,00
4,0 - 20,00
4,0 - 30,00
6,0 - 38,00
6,0 - 26,75
4,0 - 39,00
6,0 - 32,00
5,0 - 28,00
6,0 - 30,50
6,0 - 37,00
4,8 - 10,65
6,0 - 25,00
6,0 - 32,00
6,0 - 40,00
Ø mm
4,0 mm
No. 5
No. 6
Ø mm
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
20,0 mm
22,0 mm
24,0 mm
26,0 mm
28,0 mm
30,0 mm
Ø mm
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
Price / each
€
18,0 mm
20,0 mm
No. 1
No. 2
1/8
1/4
3/8
1/2
3/4
Step drills
Step drills HSS, CBN ground, spiral fluted
with split point
Point cut:
1.4
work´s specification
with split point
DIN 1412 C
Point angel:
118°
Step angle:
90°
Ø-Tolerance: work´s specification
Surface:
bright
Right-hand cutting
Packing unit: in plastic tubes of 1
Size no.
0/9k
1k
2k
Drilling range
mm
Total length
mm
4,0 - 12,00
4,0 - 20,00
4,0 - 30,00
48
58
72
Ø mm
4,0 mm
5,0 mm
6,0 mm
7,0 mm
8,0 mm
9,0 mm
10,0 mm
11,0 mm
12,0 mm
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material. Step height
2 mm. Ideal to produce switchboards.
Steps
9
9
14
Shank-Ø
mm
6
8
10
Article no.
Ø mm
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
No. 0/9k
20,0 mm
Price / each
€
Ø mm
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
20,0 mm
22,0 mm
24,0 mm
26,0 mm
28,0 mm
30,0 mm
101 061
101 062
101 063
No. 1k
Step drills HSS, CBN ground, spiral fluted
with split point for metric cable connections,
through holes after DIN/EN 50262
Point cut:
work´s specification
with split point
DIN 1412 C
Point angel:
118°
Step angle:
90°
Ø-Tolerance: work´s specification
Surface:
bright
Right-hand cutting
Packing unit: in plastic tubes of 1
Ø mm
6,5 mm
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material.
Step height 4 mm.
Size no.
Drilling range
mm
Total length
mm
Steps
Shank-Ø
mm
Article no.
15
17
6,5 - 32,5
6,5 - 40,5
79
96
9
11
10
10
101 092
101 090
Price / each
€
8,5 mm
12,5 mm
16,5 mm
20,5 mm
25,5 mm
29,0 mm
32,5 mm
Ø mm
6,5 mm
8,5 mm
10,5 mm
12,5 mm
16,5 mm
work´s specification with
split point
DIN 1412 C
Point angle:
118°
Step angel:
90°
Ø-Tolerance: work´s specification
Surface:
bright
Right-hand cutting
Packing unit: in plastic tubes of 1
20,5 mm
No. 15
25,5 mm
29,0 mm
32,5 mm
36,5 mm
40,5 mm
Step drills HSS, CBN ground, spiral fluted
with split point for metric cable connections,
core holes after DIN/EN 60423
Point cut:
No. 2k
10,5 mm
Ø mm
No. 17
5,3 mm
7,0 mm
9,0 mm
10,5 mm
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material.
Step height 4 mm.
14,5 mm
18,5 mm
23,5 mm
Ø mm
27,0 mm
5,3 mm
7,0 mm
9,0 mm
10,5 mm
30,5 mm
14,5 mm
18,5 mm
23,5 mm
27,0 mm
30,5 mm
No. 14
Size no.
Drilling range
mm
Total length
mm
Steps
Shank-Ø
mm
Article no.
14
16
5,3 - 30,5
5,3 - 38,5
79
96
9
11
10
10
101 093
101 091
34,5 mm
38,5 mm
Price / each
€
No. 16
- 58 -
Step drills
Table of application for step drills HSS, HSS Co 5,
HSS-TiN, CBN ground
Size
No. 0/5
No. 0/9
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
No. 7
No. 8
No. 9
No. 10
No. 11
No. 12
No. 13
No. 14
No. 15
No. 16
No. 17
Ø mm
Description
for metric hole diameters
Ø 6,0 mm
Ø 8,0 mm
Ø 10,0 mm
Ø 12,0 mm
Ø 4,0 mm
Ø 11,0 mm
Ø 5,0 mm
Ø 12,0 mm
Ø 6,0 mm
Ø 7,0 mm
Ø 8,0 mm
Ø 9,0 mm Ø 10,0 mm
Ø 4,0 mm
Ø 18,0 mm
Ø 6,0 mm
Ø 20,0 mm
Ø 8,0 mm
Ø 10,0 mm
Ø 12,0 mm
Ø 14,0 mm Ø 16,0 mm
Ø 4,0 mm
Ø 18,0 mm
Ø 6,0 mm
Ø 20,0 mm
Ø 8,0 mm
Ø 22,0 mm
Ø 10,0 mm
Ø 24,0 mm
Ø 12,0 mm
Ø 26,0 mm
Ø 14,0 mm Ø 16,0 mm
Ø 28,0 mm Ø 30,0 mm
Ø 6,0 mm
Ø 26,0 mm
Ø 9,0 mm
Ø 29,0 mm
Ø 13,0 mm
Ø 32,0 mm
Ø 16,0 mm
Ø 35,0 mm
Ø 19,0 mm
Ø 38,0 mm
Ø 21,0 mm Ø 23,0 mm
PG 7
Ø 11,4 mm
PG 9
PG 11
PG 13,5
PG 16
PG 21
Ø 14,0 mm Ø 17,25 mm Ø 19,0 mm Ø 21,25 mm Ø 26,75 mm
Ø 4,0 mm
Ø 24,0 mm
Ø 6,0 mm
Ø 27,0 mm
Ø 9,0 mm
Ø 30,0 mm
Ø 12,0 mm
Ø 33,0 mm
Ø 15,0 mm
Ø 36,0 mm
R 1/8"
Ø 11,2 mm
R 1/4"
Ø 14,5 mm
R 3/8"
Ø 18,2 mm
R 1/2"
Ø 22,3 mm
R 3/4"
Ø 27,9 mm
G 1/8"
Ø 8,8 mm
G 1/4"
Ø 11,8 mm
G 3/8"
Ø 15,3 mm
G 1/2"
Ø 19 mm
G 3/4"
Ø 24,5 mm
for metric hole diameters
Ø mm PG
6,0 mm
9,0 mm
12,5 mm
15,2 mm
18,6 mm
20,4 mm
22,5 mm
for metric hole diameters
for metric hole diameters
for steel conduit threads (core holes)
for pipe threads (core holes)
for steel conduit threads (through holes)
PG 11
Ø 18,6 mm
PG 13,5
Ø 20,4 mm
PG 16
Ø 22,5 mm
PG 21
Ø 28,3 mm
PG 7
Ø 12,5 mm
PG 9
Ø 15,2 mm
PG 11
Ø 18,6 mm
PG 13,5
Ø 20,4 mm
PG 16
Ø 22,5 mm
PG 21
Ø 28,3 mm
3/4
Ø mm PG
7
9
11
13,5
16
26,0 mm
28,3 mm 21
30,5 mm
34,0 mm
37,0 mm 29
6,4 mm
No. 9
7,2 mm
9,6 mm
10,65 mm
PG 29
Ø 37 mm
Ø mm
6,0 mm
9,0 mm
12,0 mm
16,0 mm
Ø 6,4 mm
Ø 7,2 mm
Ø 9,6 mm
Ø 10,65 mm
Ø 6,0 mm
Ø 9,0 mm
Ø 12,0 mm
Ø 16,0 mm
Ø 20,0 mm
Ø 22,5 mm Ø 25,0 mm
Ø 6,0 mm
Ø 28,5 mm
Ø 9,0 mm
Ø 32,0 mm
Ø 12,0 mm
Ø 16,0 mm
Ø 20,0 mm
Ø 22,5 mm Ø 25,0 mm
Ø 6,0 mm
Ø 32,0 mm
Ø 39,0 mm
Ø 11,0 mm
Ø 33,0 mm
Ø 40,0 mm
Ø 17,0 mm
Ø 34,0 mm
Ø 29,0 mm
Ø 36,0 mm
Ø 30,0 mm Ø 31,0 mm
Ø 37,0 mm Ø 38,0 mm
M6
Ø 5,3 mm
M 32
Ø 30,5 mm
M8
Ø 7,0 mm
M 10
Ø 9,0 mm
M6
Ø 6,5 mm
M 32
Ø 32,5 mm
M8
Ø 8,5 mm
M6
Ø 5,3 mm
M 32
Ø 30,5 mm
M8
Ø 7,0 mm
M 40
Ø 38,5 mm
M 10
Ø 9,0 mm
M6
Ø 6,5 mm
M 32
Ø 32,5 mm
M8
Ø 8,5 mm
M 40
Ø 40,5 mm
M 10
Ø 10,5 mm
for metric hole diameters with high steps
1/2
24,5 mm
6,0 mm
9,0 mm
12,5 mm
15,2 mm
18,6 mm
20,4 mm
22,5 mm
4,8 mm
Ø 4,8 mm
for metric hole diameters with high steps
3/8
19,0 mm
28,3 mm 21
30,5 mm
Ø mm
PG 9
Ø 15,2 mm
for blind rivets M3 - M4 - M5 - M6 - M8
15,3 mm
7
9
11
13,5
16
Ø 18,0 mm Ø 21,0 mm
Ø 39,0 mm
PG 7
Ø 12,5 mm
for steel conduit threads (through holes)
1/8
1/4
No. 7
No. 8
for metric hole diameters
for pipe threads (external Ø, through holes)
8,8 mm
11,8 mm
28,0 mm
Ø 4,0 mm
for metric hole diameters
G
5,0 mm
No. 10
20,0 mm
22,5 mm
25,0 mm
for metric hole diameters and large diameters
Ø 23,0 mm
Ø 35,0 mm
Ø mm
6,0 mm
9,0 mm
12,0 mm
for metric cable connections, core holes after DIN/EN 60423
M 12
Ø 10,5 mm
M 16
Ø 14,5 mm
M 20
Ø 18,5 mm
M 25
Ø 23,5 mm
16,0 mm
20,0 mm
22,5 mm
25,0 mm
28,5 mm
32,0 mm
for metric cable connections, through holes after DIN/EN 50262
M 10
Ø 10,5 mm
M 12
Ø 12,5 mm
M 16
Ø 16,5 mm
M 20
Ø 20,5 mm
M 25
Ø 25,5 mm
for metric cable connections, core holes after DIN/EN 60423
M 12
Ø 10,5 mm
M 16
Ø 14,5 mm
M 20
Ø 18,5 mm
No. 11
M 25
Ø 23,5 mm
Ø mm
6,0 mm
11,0 mm
17,0 mm
23,0 mm
29,0 mm
30,0 mm
31,0 mm
32,0 mm
33,0 mm
34,0 mm
35,0 mm
36,0 mm
37,0 mm
38,0 mm
39,0 mm
40,0 mm
No. 12
for metric cable connections, through holes after DIN/EN 50262
M 12
Ø 12,5 mm
M 16
Ø 16,5 mm
M 20
Ø 20,5 mm
M 25
Ø 25,5 mm
No. 13
- 59 -
1.4
Step drills
Step drills bit HSS, CBN ground,
spiral fluted with split point
Point cut:
1.4
work´s specification
with split point DIN 1412 C
Point angle:
118°
Step angle:
90°
Ø-tolerance: work´s specification
Surface:
bright
Shank:
6,35 x 27 mm
Right hand cutting
Ø mm
4,0 mm
5,0 mm
6,0 mm
7,0 mm
8,0 mm
9,0 mm
10,0 mm
11,0 mm
The CBN ground and spiral flutes guarantee
quiet running and high cutting performance.
Especially the chip flow is optimized, so even
long, non-breaking chips will be removed easily.
The optimized chip flow protects the cutting
edges and reduces built-up edges and cold
weld marks. The cone makes it easier to withdraw the tool from the material.
12,0 mm
Ø mm
4,0 mm
6,0 mm
8,0 mm
10,0 mm
Packing unit:
in plastic tubes of 1
12,0 mm
14,0 mm
No. 0/9
16,0 mm
18,0 mm
20,0 mm
Size no.
Drilling range
mm
Total length
mm
Steps
Shank
hexagon
Article no.
0/9
1
2
4,0 - 12,0
4,0 - 20,0
4,0 - 30,0
72
81
105
9
9
14
1/4"
101 050-9H
101 051 H
101 052 H
1/4"
1/4"
Ø mm
Price / each
€
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
20,0 mm
22,0 mm
24,0 mm
26,0 mm
28,0 mm
30,0 mm
Emphasised articles are new additions.
No. 1
Ø inch
No. 2
3/16"
1/4"
5/16"
Step drills HSS, inch size, CBN ground,
with split point
Point cut:
work´s specification
with split point DIN 1412 C
Point angle:
118°
Step angle:
90°
Ø-tolerance: work´s specification
Surface:
bright
Right hand cutting
3/8"
7/16"
1/2"
The CBN ground flutes guarantee quiet running and high cutting performance. The cone
makes it easier to withdraw the tool from the
material.
Ø inch
1/8"
5/32"
3/16"
7/32"
1/4"
9/32"
5/16"
11/32"
3/8"
13/32"
7/16"
15/32"
1/2"
No. 1
Ø inch
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
1 1/16"
Packing unit:
in plastic tubes of 1
Size no.
1
2
3
4
5
6
7
8
9
Drilling range
inch
3/16
- 1/2
- 1/2
1/4 - 3/4
3/16 - 7/8
1/2 - 1
7/8 - 1 3/8
3/8 - 1/2
7/8
7/8 - 1 1/8
1/8
Total length
inch
Steps
Shank Ø
inch
Article no.
3 1/8
3 1/8
2 3/4
3 1/4
3 1/4
3 1/4
1 7/8
2 19/32
3 7/64
6
13
9
12
9
5
2
1
2
1/4
101 701
101 702
101 703
101 704
101 705
101 706
101 707
101 708
101 709
1/4
3/8
3/8
3/8
3/8
1/4
3/8
3/8
Price / each
€
No. 2
Ø inch
3/16"
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
11/16"
3/4"
13/16"
7/8"
No. 3
Ø inch
1/2"
9/16"
5/8"
11/16"
3/4"
13/16"
7/8"
15/6"
1"
No. 4
No. 5
- 60 -
Step drills
Step drills HSS-TiN, inch size, CBN ground,
with split point
Point cut:
work´s specification
with split point DIN 1412 C
Point angle:
118°
Step angle:
90°
Ø-tolerance: work´s specification
Surface:
titanium-nitride coated
Right hand cutting
The CBN ground flutes guarantee quiet running and high cutting performance. The cone
makes it easier to withdraw the tool from the
material.
1
2
3
4
5
6
7
8
9
Drilling range
inch
3/16
- 1/2
- 1/2
1/4 - 3/4
3/16 - 7/8
1/2 - 1
7/8 - 1 3/8
3/8 - 1/2
7/8
7/8 - 1 1/8
1/8
7/8"
1 1/8"
Ø inch
1 7/32"
1 1/4"
3/8"
1/2"
1 3/8"
Packing unit:
in plastic tubes of 1
Size no.
Ø inch
No. 6
Total length
inch
Steps
Shank Ø
inch
Article no.
3 1/8
3 1/8
2 3/4
3 1/4
3 1/4
3 1/4
1 7/8
2 19/32
3 7/64
6
13
9
12
9
5
2
1
2
1/4
101 701 T
101 702 T
101 703 T
101 704 T
101 705 T
101 706 T
101 707 T
101 708 T
101 709 T
1/4
3/8
3/8
3/8
3/8
1/4
3/8
3/8
No. 7
Price / each
€
Ø inch
7/8"
No. 8
Step drill set HSS, CBN ground,
spiral fluted in steel case
Description
Article no.
Step drills HSS spiral fluted, sizes 0/9, 1, 2
101 026
Price / set
€
No. 101 026 E
Step drill set HSS Co 5, CBN ground,
spiral fluted in steel case
Description
Step drills HSS Co 5 spiral fluted, sizes 0/9, 1, 2
Article no.
Price / set
€
101 026 E
No. 101 026 T
Step drill set HSS-TiN, CBN ground,
spiral fluted in steel case
Description
Step drills HSS-TiN spiral fluted, sizes 0/9, 1, 2
Article no.
Price / set
€
101 026 T
Step drill set Combi HSS, CBN ground,
spiral fluted in steel case
No. 101 027
Description
Article no.
Step drills HSS spiral fluted, sizes 1, 2
+ 1 milling drill HSS Ø 6,0 mm x 90 mm
101 027
- 61 -
7/8"
Ø inch
Price / set
€
1 1/8"
No. 9
1.4
Step drills
Step drills HSS, CBN ground
with 3 cutting edges
1.4
Point cut:
work´s specification
Point angle:
118°
Step angle:
90°
Ø-tolerance:
work´s specification
Surface:
bright
Right hand cutting
Ø mm
4,0 mm
5,0 mm
6,0 mm
7,0 mm
The deep-ground flutes of step drills with 3
cutting edges guarantee absolutely chatterfree working. The reduced load of the cutting
edges allows a higher feed rate especially for
soft materials like non-ferrous metals. The cone makes it easier to withdraw the tool from
the material.
8,0 mm
9,0 mm
10,0 mm
11,0 mm
Ø mm
4,0 mm
12,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
Packing unit:
in plastic boxes of 1
16,0 mm
No. 0/9
18,0 mm
20,0 mm
Ø mm
Size no.
Drilling range
mm
Total length
mm
Steps
Shank-Ø
mm
0/9
1
2
4,0 - 12,00
4,0 - 20,00
4,0 - 30,00
65
75
100
9
9
14
6
8
10
Article no.
Price / each
€
4,0 mm
6,0 mm
8,0 mm
10,0 mm
12,0 mm
14,0 mm
16,0 mm
18,0 mm
20,0 mm
22,0 mm
24,0 mm
26,0 mm
28,0 mm
30,0 mm
101 350-9
101 351
101 352
No. 1
No. 2
Step drill set HSS, CBN ground
with 3 cutting edges in steel case
Description
Article no.
Step drills HSS with 3 cutting edges, sizes 0/9, 1, 2
101 326
Price / set
€
No. 101 326
Milling drills HSS, HSS-TiN
Point cut:
helical point
Point angle:
118°
Surface:
bright / TiN
Right hand cutting
For drilling and milling contours into wood, sheet
metal, plastics and other thin-walled materials.
Twist drill at the front, turning into a milling cutter
with chip breakers.
No. 101 201
Packing unit:
in plastic boxes of 1
Ø
mm
Total length
mm
Material
Article no.
6,0
8,0
6,0
8,0
90
90
90
90
HSS
HSS
HSS-TiN
HSS-TiN
101 201
101 202
101 201 T
101 202 T
- 62 -
Price / each
€
No. 101 201 T
Step drills
Step drills HSS, CBN ground
Point cut:
without point
Step angle:
90°
Ø-tolerance:
work´s specification
Surface:
bright
Right hand cutting
Ø mm
The CBN ground flutes guarantee quiet running and high cutting performance. The cone
makes it easier to withdraw the tool from the
material.
NEW
Drilling range
mm
Total length
mm
Steps
Shank-Ø
mm
20
30
40
12,0 - 20,00
20,0 - 30,00
30,0 - 40,00
66
78
78
9
11
11
8
10
10
Article no.
High carbon High carbon
Alloyed
struc. steel struc. steel
steel
up to 700
over 700
up to 1000
N/mm²
N/mm²
N/mm²
101 361
101 362
101 363
No. 0/5
No. 0/9
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
No. 7
No. 8
No. 9
No. 10
No. 11
No. 12
No. 13
No. 14
No. 15
No. 16
No. 17
No. 20
No. 30
No. 40
Size
No. 1
No. 2
No. 3
No. 4
No. 5
No. 6
No. 7
No. 8
No. 9
up to 4
up to 4
No. 30
No. 40
Cast iron
Cast iron
up to 250
N/mm²
over 250
N/mm²
up to 4
up to 4
CuZnalloy
brittle
CuZnalloy
tough
Alalloy
up to 11% Si
Thermoplastics
Duroplastics
up to 4
up to 4
up to 4
up to 4
up to 4
30
20
20
15
10
60
35
30
20
15
Cutting
spray
Cutting
spray
Cutting
spray
Air
Air
Air
Air
Cutting
spray
Water
Air
Ø mm
r.p.m.
r.p.m.
r.p.m.
r.p.m.
r.p.m.
r.p.m.
r.p.m.
r.p.m.
r.p.m.
r.p.m.
4,0-12,0
4,0-12,0
4,0-20,0
4,0-30,0
6,0-38,0
6,0-26,8
4,0-32,0
6,0-32,0
5,0-28,0
6,0-30,5
6,0-37,0
4,8-10,7
6,0-25,0
6,0-32,0
6,0-40,0
5,3-30,5
6,5-32,5
5,3-38,5
6,5-40,5
12,0-20,0
20,0-30,0
30,0-40,0
Ø inch
3/16 - 1/2
1/8 - 1/2
1/4 - 3/4
3/16 - 7/8
1/4 -1
1/4 - 1 3/8
5/32 - 1/2
5/32 - 7/8
5/32 - 1 1/8
2389-796
2389-796
2389-478
2389-318
1592-251
1592-357
2389-299
1592-299
1911-341
1592-313
1592-258
1990-897
1592-382
1592-299
1592-239
1803-313
1470-294
1803-248
1470-236
796-478
478-318
318-239
r.p.m.
2006-752
3009-752
1505-502
2006-430
1505-376
1505-274
2407-752
2407-430
2407-334
1592-531
1592-531
1592-318
1592-212
1062-168
1062-238
1592-199
1062-199
1274-227
1062-209
1062-172
1327-598
1062-255
1062-199
1062-159
1202-209
980-196
1202-165
980-157
531-318
318-212
212-159
r.p.m.
1337-502
2006-502
1003-334
1337-287
1003-251
1003-182
1605-502
1605-287
1605-223
1592-531
1592-531
1592-318
1592-212
1062-168
1062-238
1592-199
1062-199
1274-227
1062-209
1062-172
1327-598
1062-255
1062-199
1062-159
1202-209
980-196
1202-165
980-157
531-318
318-212
212-159
r.p.m.
1337-502
2006-502
1003-334
1337-287
1003-251
1003-182
1605-502
1605-287
1605-223
1194-398
1194-398
1194-239
1194-159
796-126
796-179
1194-149
796-149
955-171
796-157
796-129
995-449
796-191
796-149
796-119
901-157
735-147
901-124
735-118
398-239
239-159
159-119
r.p.m.
1003-376
1505-376
752-251
1003-215
752-188
752-137
1204-376
1204-215
1204-167
796-265
796-265
796-159
796-106
531-84
531-119
796-100
531-100
637-114
531-104
531-86
663-299
531-127
531-100
531-80
601-104
490-98
601-83
490-79
265-159
159-106
106-80
r.p.m.
669-251
1003-251
502-167
669-143
502-125
502-91
802-251
802-143
802-111
Cooling lubricant
Size
up to 4
30,0 mm
31,0 mm
32,0 mm
33,0 mm
34,0 mm
35,0 mm
36,0 mm
37,0 mm
38,0 mm
39,0 mm
40,0 mm
Price / each
€
Step drills - table of cutting speeds
Vc = m/min
Ø mm
20,0 mm
21,0 mm
22,0 mm
23,0 mm
24,0 mm
25,0 mm
26,0 mm
27,0 mm
28,0 mm
29,0 mm
30,0 mm
Ø mm
Size no.
Sheet thickness mm
1.4
No. 20
Packing unit:
in plastic boxes of 1
Material
12,0 mm
13,0 mm
14,0 mm
15,0 mm
16,0 mm
17,0 mm
18,0 mm
19,0 mm
20,0 mm
- 63 -
4777-1592 2787-929 2389-796 1592-531
4777-1592 2787-929 2389-796 1592-531
4777-955 2787-557 2389-478 1592-318
4777-637 2787-372 2389-318 1592-212
3185-503 1858-293 1592-251 1062-168
3185-714 1858-417 1592-357 1062-238
4777-597 2787-348 2389-299 1592-199
3185-597 1858-348 1592-299 1062-199
3822-682 2229-398 1911-341 1274-227
3185-627 1858-365 1592-313 1062-209
3185-516 1858-301 1592-258 1062-172
3981-1794 2322-1047 1990-897 1327-598
3185-764 1858-446 1592-382 1062-255
3185-597 1858-348 1592-299 1062-199
3185-478 1858-279 1592-239 1062-159
3605-627 2103-365 1803-313 1202-209
2940-588 1715-343 1470-294 980-196
3605-496 2103-290 1803-248 1202-165
2940-472 1715-275 1470-236 980-157
1592-955
929-557
796-478 531-318
955-637
557-372
478-318 318-212
637-478
372-279
318-239 212-159
r.p.m.
r.p.m.
r.p.m.
r.p.m.
4012-1505 2340-878 2006-752 1337-502
6018-1505 3511-878 3009-752 2006-502
3009-1003 1755-585 1505-502 1003-334
4012-860 2340-502 2006-430 1337-287
3009-752 1755-439 1505-376 1003-251
3009-547 1755-319 1505-274 1003-182
4815-1505 2809-878 2407-752 1605-502
4815-860 2809-502 2407-430 1605-287
4815-669 2809-390 2407-334 1605-223
1194-398
1194-398
1194-239
1194-159
796-126
796-179
1194-149
796-149
955-171
796-157
796-129
995-449
796-191
796-149
796-119
901-157
735-147
901-124
735-118
398-239
239-159
159-119
r.p.m.
1003-376
1505-376
752-251
1003-215
752-188
752-137
1204-376
1204-215
1204-167
For your notes
1.4
- 64 -