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Product profile
Customization
AvailableCustomized
CustomizedStandard
DIN, JIS, AISIModel NO.
DM4-ST016Length
Jobber-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
Multi-Size Drilling Capability: Drills multiple hole sizes from 4mm to 60mm using a single step drill bit.
No Pilot Hole Required: Eliminates the need for center punching or pilot hole drilling in most sizes.
Precision Laser Etching: Hole sizes are permanently marked on the flute for easy identification.
De-burred Hole Finish: Produces cylindrical bores with de-burred edges for clean results.
Wide Material Compatibility: Suitable for drilling steel, brass, aluminum, copper, plastic, and wood.
Customizable Shank Types: Available in Hex, Round, or Triangle shank configurations.
High Hardness Material: Hardness ranges from 60-66HRC for durability and sharpness retention.
Fast Sample Production: Samples ready in 3-7 days with door-to-door shipping options.
Company profile
CertifiedBusiness Type: Trading CompanyExport Year: 2015-12-15 CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤18h 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 drill bits be used on?
A:
They are designed for drilling metal (steel, brass, aluminum, copper), plastic, and wood.
Q:Do I need to use a pilot hole before drilling?
A:
No, center punching or pilot hole drilling is not required for most sizes.
Q:What is the maximum hole size these bits can drill?
A:
The diameter range covers from 4mm up to 60mm depending on the specific model.
Q:How are the hole sizes indicated on the drill bit?
A:
The diameter markings are permanently laser-etched in the flute area for easy determination.
Q:What shank types are available for customization?
A:
Customization options include Hex, Round, and Triangle shanks.
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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