Inch Size HSS Spiral Grooved Step Drills
Specification:
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.
* HSS Step Drills for drilling cylindrical holes in solid material up to a thickness of 1/8".
* 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 1/2" 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
Fractional Size available:
|
Item No.
|
Size Range
|
Step No.
|
Shank Size
|
|
SDG001
|
3/16" – 1/2"
|
6
|
1/4"
|
|
SDG002
|
1/8" – 1/2"
|
13
|
1/4"
|
|
SDG003
|
1/4" – 3/4"
|
9
|
3/8"
|
|
SDG004
|
3/16" – 7/8"
|
12
|
3/8"
|
|
SDG005
|
1/4" – 7/8"
|
11
|
3/8"
|
|
SDG006
|
1/4" – 1"
|
10
|
1/2"
|
|
SDG007
|
9/16" – 1"
|
8
|
3/8"
|
|
SDG008
|
1/2" – 1"
|
9
|
3/8"
|
|
SDG009
|
7/16" – 1 1/8"
|
12
|
3/8"
|
|
SDG010
|
1/4" – 1 3/8"
|
10
|
1/2"
|
|
SDG011
|
1/4" – 1 1/2"
|
11
|
1/2"
|
|
SDG012
|
13/16" – 1 3/8"
|
10
|
1/2"
|
|
SDG013
|
3/4" – 1 3/8"
|
11
|
1/2"
|
|
SDG014
|
7/8" – 1 1/8"
|
2
|
3/8"
|
|
SDG015
|
7/8" – 1 3/8"
|
5
|
3/8"
|
|
