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Home --> Power tools accessory >metal drill bits  > HSS Step Drill Bits

To make a precise desired hole for panel or switch on the metal sheet or any non-ferrous materials for non-professionals, you may feel a pain to do so. To drill different holes with standard drill bits on the sheet, they may come out at the wrong place or wrong sizes, due to without drill stand or sliding up and down the drill.

By using step drill could solve some problems you may face above. Made of M2 high speed steel, they are designed like a tower and each floor have different sizes, so a piece of step drill can replace many standard one size drill. Besides single-fluted step drill, a spiral-fluted step drill, which drill in a more smooth way than single-fluted one and face less resistance against any drilling work piece while drilling.

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Page 1/2  HSS Step Drill Bits :                            

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Cobalt coated HSS step dill with  round shank ( Type A ) Titanium coated step drill with hex quick shank ( Type B ) Titanium coated step drill with SDS shank ( Type C )

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White bright spiral flute step drill ( Type D ) Titanium coated spiral flute step drill with hex shank ( Type E )

 Metric Size :

Item No.
Size Range
Step No.
Shank Size
201M001
4 V 12mm x 2mm
5
6mm
201M002
4 V 12 mm x 1mm
9
6mm
201M003
4 V 20mm x 2mm
9
8mm
201M004
4 V 22mm x 2mm
10
8/10mm
201M005
4 V 30mm x 2mm
14
10mm
201M006
4 V 32mm x 2mm
15
10mm
201M007
4 V 39mm x 2-3mm
14
10mm
201M008
5 V 28mm
7
10mm
201M009
5 V 28.3mm
10
10mm
201M010
5 V 35mm x 2-3mm
13
13mm
201M011
6 V 18mm x 2mm
7
10mm
201M012
6 V 20mm x 2mm
8
10mm
201M013
6 V 24mm x 2mm
10
10mm
201M014
6 V 25mm
7
10mm
201M015
6 V 26.75mm
8
10mm
201M016
6 V 30mm x 2mm
13
10mm
201M017
6 V 30.5mm
10
10mm
201M018
6 V 32mm
8
10mm
201M019
6 V 32mm
9
10mm
201M020
6 V 37mm
12
10mm
201M021
6 V 38mm
12
10mm
201M022
6 V 40mm
16
13mm
201M023
9 V 36mm x 3mm
10
12mm
201M024
10 V 20mm x 1mm
11
10mm
201M025
12 V 20mm x 1mm
9
10mm
201M026
12.5 V 30.5mm
7
12mm
201M027
13 V 38mm
10
12mm
201M028
14 V 24mm x 2mm
6
13mm
201M029
14 V 25mm
7
13mm
201M030
20 V 30mm x 1mm
11
13mm
201M031
20 V 34mm x 2mm
8
13mm
201M032
30 V 40mm x 1mm
11
13mm
201M033
40 V 50mm x 1mm
11
13mm
201M034
50 V 60mm x 1mm
11
13mm
201M035
5 V 30.5mm
13
12mm
201M036
5 V 38mm
14
12mm

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Inch Size :

Item No.
Size Range
Step No.
Shank Size
201F001
3/16" V 1/2"
6
1/4"
201F002
1/8" V 1/2"
13
1/4"
201F003
1/4" V 3/4"
9
3/8"
201F004
3/16" V 7/8"
12
3/8"
201F005
1/4" V 7/8"
11
3/8"
201F006
1/4" V 1"
10
1/2"
201F007
9/16" V 1"
8
3/8"
201F008
1/2" V 1"
9
3/8"
201F009
7/16" V 1 1/8"
12
3/8"
201F010
1/4" V 1 3/8"
10
1/2"
201F011
1/4" V 1 1/2"
11
1/2"
201F012
13/16" V 1 3/8"
10
1/2"
201F013
3/4" V 1 3/8"
11
1/2"
201F014
7/8" V 1 1/8"
2
3/8"
201F015
7/8" V 1 3/8"
5
3/8"

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                                TEL : 886-4-26567334  FAX : 886-4-26567342   E-mail : letterman888@seed.net.tw or letterman999@gmail.com

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