What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What standards does the drill bit meet?

The drill bits meet DIN 338 (jobber series), DIN 340 (long series), and DIN 1897 (stub series) standards.

Is the product customizable?

Yes, customization is available for shank type (Hex/Round/Triangle), hardness (60-66HRC), surface treatment, flute type, point angle, and diameter.

3PCS/Set HSS Step Drill Bit Set

Name: 3PCS/Set HSS Step Drill Bit Set
Brand: DANYANG DAMING TOOLS CO., LTD.
SKU: 786805955

Jiangsu, ChinaDANYANG DAMING TOOLS CO., LTD.

US$0.10-5.00

1 Piece

Product profile

Customization

Available

Customized

Standard

DIN, JIS, AISI

Model NO.

DM4-ST025

Length

Jobber-length

Type

Step Drill Bit

Material

High Speed Steel

Usage

Metal Drilling

Shank

Hex / Round / Triangle

Hardness

60-66HRC

Surface Treatment

Bright, Amber, Tin-Coated

Flute

Straight or Spiral

Point Angle

118 Pointed Angle, 90 Stepped Angle

Application

Metal Stainless Steel Drilling

Diameter

4mm-39mm

Transport Package

Plastic Box, Blister Card, Wooden Box, Metal Box

Specification

4mm-39mm

Trademark

Origin

Danyang City, Jiangsu Province, China

HS Code

8207509000

Production Capacity

300000 Piece/Pieces Per Week

Key features

Multi-Size Drilling Efficiency: Drills multiple hole sizes with one bit, eliminating need for pilot holes or center punching.

Precision Laser Markings: Diameter markings permanently laser-etched in flute area for exact hole size determination.

Deburred Clean Holes: Produces cylindrical bores with deburred edges, suitable for even very thin-walled materials.

Anti-Slip Shank Design: Flatted shank prevents slippage in three-jaw chucks for secure and safe operation.

Versatile Material Compatibility: Effective on steel, brass, aluminum, copper, plastic, and wood up to 3.2mm thickness.

Direct Manufacturer Supply: 15 years production experience with direct export to USA, Europe, Australia, and global markets.

Fast Sample Production: Samples ready in 3-7 days, enabling quick testing with over 95% conversion to formal orders.

Company profile

DANYANG DAMING TOOLS CO., LTD.

Jiangsu, China

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 this step drill bit set be used on?

These bits are perfect for drilling multiple-size holes in thin sections of metal (steel, brass, aluminum, copper up to 1/8 inch thick), plastic, and wood.

Q:Do I need to use a center punch or pilot hole?

No, center punching or pilot hole drilling is not required in most sizes. The drills do not run off center, ensuring accurate placement.

Q:How are the hole sizes indicated on the bit?

The hole size is easily determined by diameter markings that are permanently laser-etched in the flute area of the bit.

Q:What is the lead time for samples and bulk orders?

Production time is 3-7 days for samples and 2-3.5 weeks for batch goods. Peak season lead time is one month.

Q:What shipping methods are available?

For samples or under 45KG, we use TNT/FedEx/DHL/UPS door-to-door. For batch goods, shipping is by air or sea from airport/seaport to airport/seaport.