Do you offer free samples?

Free samples can be provided if clients agree to pay for the shipping cost.

What is the hardness capacity of the drill bit?

The drill bit is suitable for materials with hardness up to HRC65.

Solid Carbide Inner Coolant Double Margin Twist Drill Bit for Hardened Steel

Name: Solid Carbide Inner Coolant Double Margin Twist Drill Bit for Hardened Steel
Brand: Changzhou SDK Precision Technology Co., Ltd.
SKU: 792909672

Jiangsu, ChinaChangzhou SDK Precision Technology Co., Ltd.

US$1.20

10 Pieces

Sample price:US$1.20/piece.Request sample

Product profile

Customization

Available

Customized

Length

38-330

Model NO.

3DID-2

Type

Twist Drill Bit

Material

Solid Carbide

Usage

Metal Drilling

Process Usage

Metal Working, Hardened Steel

Process Precision

0.005

Application

CNC Machining Center

Flute

2 Flute

OEM Service

Provide

Customized Size

Accepted

Hardness

HRC65

Transport Package

1PC/Tube

Specification

1mm-20mm

Trademark

SDK/Customized logo/OEM logo

Origin

China

HS Code

8207709000

Key features

High Hardness Capacity: Capable of drilling hardened steel up to HRC65 with solid carbide construction.

Inner Coolant Design: Double margin twist drill bit with inner coolant for efficient chip removal and cooling.

Premium Coating Options: Available with AlTiN, TiAlN, DLC, Nano, and Diamond coatings for extended tool life.

High Precision: Achieves precision of 0.005-0.01mm, suitable for high-accuracy CNC machining centers.

Wide Material Compatibility: Suitable for cast iron, carbon steel, stainless steel, titanium alloy, and heat-treated steel.

Customization Service: Accepts customized sizes and provides OEM service based on client drawings and requirements.

Smooth Flute Design: Smooth and wide flutes facilitate easy chip removal, improving lathe efficiency.

Competitive Pricing: Offers big order discounts (2%-5%) and first-order coupons for new clients.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceFast DeliveryFull Customization

Changzhou SDK Precision Technology Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryChangzhou SDK Precision Technology Co., Ltd. is identified as a trade company in Changzhou, offering carbide end mills and related technical, metal-tool, parts, and materials businesses. It reports professional technical R&D capability, one R&D engineer, six to ten quality-control staff, new products launched in the past year, and customization from samples, designs, or full specifications. Reported production information includes 800,000 carbide standard end mills annually, with off-peak lead time within 15 workdays and export markets in South America, Southeast Asia/Mideast, and Europe. Limitations include no 3D software design, ODM, SDK, popular-brand OEM, overseas showroom, overseas agents or branches, or offline trade-show participation. The provided materials do not establish certification holding, reliable after-sales procedures, financial strength, or customer cases. The audit record identifies TÜV Rheinland, but the audit result is recorded as 0 and no certification conclusion is provided.

Supplier typeThe supplier is classified as a trade company located in Changzhou, with business activities covering technical services and development, metal tools, mechanical parts, metal materials, hardware, and ceramic products. Its primary product is identified as carbide end mills, indicating a trading and technical-supply profile rather than a clearly documented manufacturing-only entity.

After-Sales capabilityThe supplier has no overseas showroom, overseas agents or branches, or recorded offline trade-show participation, and reports service coverage in zero countries. Its complaint-handling and corrective/preventive-action mechanisms have no written procedures or records, which is explicit evidence of a service-process deficiency.

R&D capabilityThe supplier is identified as a professional technical supplier with R&D capability, one R&D engineer, and new products launched during the past year. Nevertheless, it does not provide 3D software design, ODM, SDK, or popular-brand OEM services, showing some defined capability limits.

Production capacityThe supplier reports annual output of 800,000 carbide standard end mills, six to ten quality-control staff, and an off-peak lead time within 15 workdays. These explicit capacity and delivery figures support production capability for the stated product, although the company is also classified as a trade company.

Customization capabilityThe supplier explicitly offers customization from samples, full customization, customization from designs, minor customization, and flexible customization. The same customization range is reported in two slices, providing direct evidence of broad customization availability.