HSS Step Drill HICOAT®
Application Examples and Recommendations
Robust high-performance tool for burr-free
■■The tool taper facilitates pulling back from
drilling and deburring of sheets, pipes and
drilled plates.
profiles. Materials up to a material thickness of
■■Chips which do not break are cleanly re-
4 mm can be drilled and deburred in a labour-
moved as with a spiral drill.
saving manner in one procedure. The high-
■■Built-up edges and cold welding on the
quality coating is resistant against wear and
blades are prevented.
suitable for diverse applications with steel and
cast iron, stainless steel (INOX), non-ferrous
Recommendations for use
metals, thermoplastics and duroplastics.
■■The HSS step drill HICOAT® is used on
sheets, pipes and profiles with a maximum
Advantages
material thickness of 4 mm.
■■The deep-cut chip flute contributes to the
■■Cutting oil or compressed air can be used as
extremely smooth running and high cutting
coolant/lubricant.
performance.
■■Please refer to the table for the recommend-
■■The high-quality drill tip ensures easy cen-
ed speed ranges.
tring and drilling.
Steel, cast steel
Steel, cast steel
Stainless steel
Cast iron
Non-ferrous metals
Fibre reinforced
up to 700 N/mm²
between
(INOX)
plastics (GRP/CRP),
700 N/mm² and
thermoplastics
1.000 N/mm²
Step dia. [mm]
Recommended [RPM]
4
2.390
1.590
1.590
1.190
2.390
1.590
6
1.590
1.060
1.060
800
1.590
1.060
8
1.190
800
800
600
1.190
800
10
950
640
640
480
950
640
12
800
530
530
400
800
530
14
680
450
450
340
680
450
16
600
400
400
300
600
400
18
530
350
350
270
530
350
20
480
320
320
240
480
320
22
430
290
290
220
430
290
24
400
270
270
200
400
270
26
370
240
240
180
370
240
28
340
230
230
170
340
230
30
320
210
210
160
320
210
HSS Step Drill HICOAT®
Ordering example:
Shank dimensions [mm]
HSS step drill HICOAT®
EAN 4007220802755
STB HSS 04-20/8 HC-FE
Order No.
EAN
No.
Drill bit
Shank dia.
Shank
Head
4007220
of drill steps
diameter range
[mm]
length
length
[mm]
[mm]
[mm]
STB HSS 04-20/8 HC-FE
802755
9
4 - 20
8
21
54
1
63
STB HSS 04-30/10 HC-FE
802762
14
4 - 30
10
21
78
1
190
202 I
55

Program

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