HSS STEP DRILLS
Specification:
* HSS Step Drills for drilling cylindrical holes in solid material up to a thickness of 4 ~ 5mm.
* Burr-free and vibration-free drilling.
* The tapered cutting edges of the next drill step can be used for simultaneous deburring or chamfering of the finished bore at the same time.
* Drilling perfectly round holes in steel, brass, copper, aluminum, wood and plastic.
* Drills up to 13 holes sizes with one bit.
* Ideal tool for sheet metal workers, electrical contractor, auto mechanics, and general contractors.
* Surface treatment available: White Finish, Black Oxide, Titanium Coated, Cobalt Coated, TiALN Coated
Metric Size available:
|
Item No.
|
Size Range
|
Step No.
|
Shank Size
|
|
SDA001
|
4 – 12mm x 2mm
|
5
|
6mm
|
|
SDA002
|
4 – 12 mm x 1mm
|
9
|
6mm
|
|
SDA003
|
4 – 20mm x 2mm
|
9
|
8mm
|
|
SDA004
|
4 – 22mm x 2mm
|
10
|
8/10mm
|
|
SDA005
|
4 – 30mm x 2mm
|
14
|
10mm
|
|
SDA006
|
4 – 32mm x 2mm
|
15
|
10mm
|
|
SDA007
|
4 – 39mm x 2-3mm
|
14
|
10mm
|
|
SDA008
|
5 – 28mm
|
7
|
10mm
|
|
SDA009
|
5 – 28.3mm
|
10
|
10mm
|
|
SDA010
|
5 – 35mm x 2-3mm
|
13
|
13mm
|
|
SDA011
|
6 – 18mm x 2mm
|
7
|
10mm
|
|
SDA012
|
6 – 20mm x 2mm
|
8
|
10mm
|
|
SDA013
|
6 – 24mm x 2mm
|
10
|
10mm
|
|
SDA014
|
6 – 25mm
|
7
|
10mm
|
|
SDA015
|
6 – 26.75mm
|
8
|
10mm
|
|
SDA016
|
6 – 30mm x 2mm
|
13
|
10mm
|
|
SDA017
|
6 – 30.5mm
|
10
|
10mm
|
|
SDA018
|
6 – 32mm
|
8
|
10mm
|
|
SDA019
|
6 – 32mm
|
9
|
10mm
|
|
SDA020
|
6 – 37mm
|
12
|
10mm
|
|
SDA021
|
6 – 38mm
|
12
|
10mm
|
|
SDA022
|
6 – 40mm
|
16
|
13mm
|
|
SDA023
|
9 – 36mm x 3mm
|
10
|
12mm
|
|
SDA024
|
10 – 20mm x 1mm
|
11
|
10mm
|
|
SDA025
|
12 – 20mm x 1mm
|
9
|
10mm
|
|
SDA026
|
12.5 – 30.5mm
|
7
|
12mm
|
|
SDA027
|
13 – 38mm
|
10
|
12mm
|
|
SDA028
|
14 – 24mm x 2mm
|
6
|
13mm
|
|
SDA029
|
14 – 25mm
|
7
|
13mm
|
|
SDA030
|
20 – 30mm x 1mm
|
11
|
13mm
|
|
SDA031
|
20 – 34mm x 2mm
|
8
|
13mm
|
|
SDA032
|
30 – 40mm x 1mm
|
11
|
13mm
|
|
SDA033
|
40 – 50mm x 1mm
|
11
|
13mm
|
|
SDA034
|
50 – 60mm x 1mm
|
11
|
13mm
|
|
SDA035
|
5 – 30.5mm
|
13
|
12mm
|
|
SDA036
|
5 – 38mm
|
14
|
12mm
|
|
