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Dm4-St020 Step Drill Straight Flute Bright Finished Tri Flat Shank for Steel
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
Versatile Multi-Material Drilling: Perfect for drilling metal, plastic, and wood up to 3.2mm thick without center punching.
Precision Step Design: Drills multiple hole sizes with one tool; exact dimensions marked permanently on the flute.
Anti-Slip Flatted Shank: Prevents slippage in three-jaw chucks for secure and safe operation.
Customizable Options: Customizable shank (Hex/Round/Triangle), surface treatment, and point angle.
Deburred Clean Holes: Produces cylindrical bores with deburred edges, even in thin-walled materials.
ISO9001 Certified Quality: Manufactured with advanced equipment and technology under ISO9001 standards.
Fast Sample Production: Samples ready in 3-7 days; batch goods in 2-3.5 weeks.
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 this step drill bit be used on?
A:
It is suitable for drilling round holes in most metals (steel, brass, aluminum, copper), plastic, and wood.
Q:Is center punching required before drilling?
A:
No, center punching or pilot hole drilling is not required in most sizes.
Q:What are the available shank types?
A:
The shank can be customized as Hex, Round, or Triangle.
Q:What is the maximum thickness this drill can handle?
A:
It can drill holes in materials up to 1/8 inch (3.2mm) thick.
Q:How is the hole size determined during use?
A:
The hole size is easily determined by the diameter markings permanently laser-etched in the flute area.
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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