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HSS Drill Bits Factory Customized Step Drills for Metal
US$0.10-5.00
1 Piece
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableCustomized
CustomizedStandard
DINModel NO.
DM4-ST001Length
Taper-lengthType
Step Drill BitMaterial
High Speed SteelUsage
Metal DrillingShank
Hex / Round / TriangleHardness
60-66HRCSurface Treatment
Bright, Amber, Tin-CoatedFlute
Straight or SpiralPoint Angle
118 Pointed Angle, 90 Stepped AngleApplication
Metal Stainless Steel DrillingDiameter
4mm-39mmTransport Package
Plastic Box, Blister Card, Wooden Box, Metal BoxSpecification
4mm-39mmTrademark
DMOrigin
Danyang City, Jiangsu Province, ChinaHS Code
8207509000Production Capacity
300000 Piece/Pieces Per WeekKey features
Customizable Shank Options: Available in Hex, Round, or Triangle shank shapes to fit various tools.
Wide Diameter Range: Covers diameters from 4mm to 39mm for versatile drilling needs.
Multiple Surface Finishes: Options include Bright, Amber, Tin-Coated, and Black Oxide treatments.
High Hardness Material: Manufactured with HSS achieving 60-66HRC hardness for durability.
Straight or Spiral Flutes: Choose between straight or spiral flute designs for different materials.
Precise Laser Etching: Diameter markings are permanently laser-etched in the flute area.
No Pilot Hole Needed: Drills round holes in most metals up to 3.2mm thick without center punching.
Deburred Hole Finish: Produces cylindrical bores with deburred edges for clean results.
Company profile

CertifiedBusiness Type: Trading CompanyExport Year: 2015-12-15 CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤15h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR
About Our Factory & Business Background
AddressDongfang Road25, Danyang City, Zhenjiang, Jiangsu, China
Plant Area250 square meters
Number of Employees8
Registered Capital100,000 RMB
Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: one month
Our Production Capability & Technical Expertise
Main ProductsTools
R&D Engineers1 people
Our Industry Experience & Global Business Record
Year of Establishment2015-12-08
Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia, Domestic
Annual Export Revenue3,000,000 USD
Number of Foreign Trading Staff4
Overseas Agent/BranchNo
Product Q&A
Q:What materials can these step drills be used on?
A:
They are perfect for drilling multiple-size holes in thin sections of metal (steel, brass, aluminum, copper), plastic, and wood.
Q:Is the shank shape customizable?
A:
Yes, the shank can be customized in Hex, Round, or Triangle shapes to suit your equipment.
Q:What is the maximum diameter available?
A:
The diameter range covers from 4mm up to 39mm, with specific models extending up to 60mm in some catalog items.
Q:Do I need to use a pilot hole before drilling?
A:
No, center punching or pilot hole drilling is not required in most sizes for these step drills.
Q:What surface treatments are available?
A:
Available finishes include Bright, Amber, Tin-Coated, Coffee, Rainbow colour, Black oxide, and Black flute & bright shank.
Send Inquiry
*To:
DANYANG DAMING TOOLS CO., LTD.
DANYANG DAMING TOOLS CO., LTD.*Content:
Supplier replies will be sent to your registered email
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