Model NO.: DM4-ST021
Flute: Straight or Spiral
Point Angle: 118 Pointed Angle, 90 Stepped Angle
Application: Metal Stainless Steel Drilling
Diameter: 4mm-39mm
Trademark: DM
Transport Package: Plastic Box, Blister Card, Wooden Box, Metal Box
Specification: 4mm-39mm
Origin: Danyang City, Jiangsu Province, China
HS Code: 8207509000
Product DescriptionHSS Step Drill Bits are perfect for drilling multiple-size holes in thin sections of metal, plastic and wood using a single bit.
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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.
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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.Â
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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 |
Product Picture
Packing&shipping
Packaging Details:Plastic Box, Blister Card, Wooden Box, Metal Box for Step Drill Bit
Shipping
1. TNT/FedEx/DHL/UPS for samples or under 45KG weight goods , Door to Door.
2. By Air or by Sea for batch goods,from airport(seaport) to airport(seaport).
3. Customers specifying freight forwarders or not.
4. Production Time: 3- 7days for samples; 2-3.5 weeks for batch goods
Our company
1) We're a direct manufacturer and 100% export to worldwide(USA, Isrel, Jordan, Iran, Thailand,Duabai, South Africa, Kenya, Egypt, Australia, UK, Spain, Brazil, etc)
2) We have around 15 years producing experience.
3) Our drill product:HSS drill bits, masonry drill, SDS drill,glass&tile drill, step drill, wood flat drill, wood auger bit, wood brad drill, center drill, left hand drill, drill set etc.
4) Above 95% customers will place a formal order after testing the samples.
More information about our products, welcome to visit :http://en.dmcraftools.com/
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