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4PCS HSS Titanium Coated Step Drill Bits Set Shank
US$0.10-5.00
1 Piece
Product profile
Customization
AvailableCustomized
CustomizedStandard
DIN, JIS, AISIModel NO.
DM4-ST022Length
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 Efficiency: Drills multiple hole sizes with one bit, eliminating need for center punching or pilot holes.
Precision Laser Etching: Diameter markings are permanently laser-etched in the flute area for exact hole size determination.
Anti-Slip Flatted Shank: Flatted shank design prevents slippage in three-jaw chucks for secure operation.
Deburred Clean Holes: Produces cylindrical bores with deburred edges, suitable for even very thin-walled materials.
Versatile Material Compatibility: Effective on steel, brass, aluminum, copper, plastic, and wood up to 3.2mm thickness.
Direct Manufacturer Export: 15 years experience, direct export worldwide with over 95% customer conversion rate.
ISO9001 Certified Quality: Manufacturing process includes roll forging and edge grinding, certified ISO9001.
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 suitable for drilling round holes in most metals (steel, brass, aluminum, copper), plastic, and wood, up to 1/8 inch (3.2mm) thick.
Q:Is center punching or a pilot hole required?
A:
No, center punching or pilot hole drilling is not required in most sizes, as the drills do not run off center.
Q:How is the hole size determined during drilling?
A:
The hole size is easily determined by the diameter markings that are permanently laser-etched in the flute area.
Q:What are the available shank types?
A:
Custom shank options include Hex, Round, or Triangle shapes to fit various chucks.
Q:What is the production time for samples and bulk orders?
A:
Production time is 3-7 days for samples and 2-3.5 weeks for batch goods.
Send Inquiry
*To:DANYANG DAMING TOOLS CO., LTD.
DANYANG DAMING TOOLS CO., LTD.*Content:
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