Carbide 2 Flute Step Drill Bit, Coolant Drilling Cutter for Machine Tools

Product Description

HSS Step Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using a single bit.
 
Each step drills does the work of many drill-bit sizes. Drills round holes in most metals (steel, brass, aluminum, copper) up to 1/8" (3.2mm) thick as well as in plastic and wood.
 
No center punching or pilot hole drilling is required on most sizes. The bits are easy to keep sharp,  and the hole size is easily determined by the diameter markings that are permanently laser-etched in the flute area.



Advantages:
1. No Centering required, the drills do not run off center.
2. A variety of hole diameters can be drilled using only one tool, and the tool can display the dimensions.
3. The dimension of drilled hole is exact.
4. Holes are de-burred by the following level, and cylindrical bores are produced.
5. Even very thin-walled materials can be drilled. 
 

1.Material	HSS M42,M35,6542(M2),9341,4341,4241
2.Finish	Tin coated,coffee,bright,rainbow colour,Black oxide,Black flute & bright shank
3.Process	Roll forged,edge ground,fully ground
4.Standard:	DIN 338 (jobber series) DIN 340 (long series) DIN 1897 (stub series)
5.Diameter	4mm-39mm
6.Advantages	Flatted shank prevents slippage in three jaw chuck Advanced equipment and technology Quality guaranteed
7.point angle	118 degree,135 degree split point
8.certification	ISO9001

Product Information

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