What is the diameter and length range?

Diameters range from D3 to D25mm. Lengths include 3D, 5D, 8D, and 12D options with 0.1mm incremental variations.

Are standard models available in stock?

Yes, we maintain a comprehensive inventory of standard models for general-purpose and stainless steel-specific drilling needs.

Carbide Drill Bits with Coolant Hole Tialn-Coating

Name: Carbide Drill Bits with Coolant Hole Tialn-Coating
Brand: CHANGZHOU DELEVEL TOOLS CO., LTD.
SKU: 2183636845

Jiangsu, ChinaCHANGZHOU DELEVEL TOOLS CO., LTD.

US$6.80-198.00

5 Pieces

Sample price:US$10.80/piece.Request sample

Product profile

Customization

Available

Customized

Standard

GB/T

Model NO.

RDM

Length

80-525mm

Type

Deep-Hole Carbide Internal Cooling Drill

Material

Tungsten Carbide

Usage

Metal Drilling

Transport Package

Single Package

Specification

Dia. 3-Dia. 20mm

Trademark

DELEVEL

Origin

Changzhou Jiangsu

HS Code

8207709000

Production Capacity

2000000/Year

Key features

Premium Raw Materials: 100% original alloy rods from Guhring, Kennametal, and Cerazizit, never recycled.

Advanced Coating Options: Available in AlTiN, AlCr-based, TiSiN, and AlCr-Blue for superior hardness and wear resistance.

Internal Cooling System: Optimized chip flute design reduces heat and improves cutting stability for deep-hole drilling.

Custom Solutions: Non-standard products available according to customer drawings or samples.

Wide Size Range: Diameters from D3 to D25mm with lengths of 3D, 5D, 8D, and 12D.

Rapid Availability: Comprehensive inventory of standard sizes for quick delivery and production support.

High Durability: Exceptional wear and impact resistance designed for demanding machining environments.

Professional Manufacturer: Over 15 years experience in solid carbide tools with 100% on-time delivery commitment.

Company profile

CHANGZHOU DELEVEL TOOLS CO., LTD.

Jiangsu, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤2.75hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryCHANGZHOU DELEVEL TOOLS CO., LTD. is a China-based manufacturer/factory specializing in carbide drills, end mills, threading tools, modular tooling, and custom carbide tools. It reports ISO 9001 certification, more than 12 years of carbide-tooling experience, six production lines, six-to-ten R&D engineers, six-to-ten quality-control staff, and annual carbide end-mill output of 600,000 pieces. The supplier supports multiple customization modes, ODM, and OEM services for well-known brands, and reports inventory capability and off-peak lead times within 15 working days. However, written corrective-action and complaint-handling procedures are absent, overseas service infrastructure is limited, and the validity of manufacturing-capacity contracts and quality-assurance status is unknown. Financial-capacity entries are present for 2023–2025, but no sufficient non-monetary evidence establishes financial strength. Customer cases are not specifically documented.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company in China. Its listed products and business scope cover carbide and other metal tooling, consistent with a direct manufacturing supplier.

CertificationsThe supplier reports holding ISO 9001 certification for its management system. This is explicit evidence of a formal quality-management certification, although the slices do not provide certificate validity or scope details.

After-Sales capabilityThe supplier has no written procedures or records for corrective and preventive actions or effective complaint handling. It has inventory capability, but no overseas warehouse, showroom, agents, or branches; therefore, the documented after-sales framework is deficient despite some fulfillment support.

R&D capabilityThe supplier reports new products during the past year, ODM availability, and six-to-ten R&D engineers with total R&D experience stated at six-to-ten years. It lacks an available SDK, but the documented product-development and ODM activity supports innovation capability overall.

Production capacityThe supplier operates six production lines, reports 600,000 carbide end mills produced annually, employs six-to-ten quality-control staff, and states off-peak lead times within 15 working days. Inventory capability and a claimed on-time-delivery record further support production execution, although contract status and quality-assurance status remain unknown.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full and minor customization, flexible customization, ODM services, and custom carbide tools. Its stated specialization in non-standard carbide tools and technical support directly supports strong customization capability.

Product Q&A

Q:What raw materials are used for these drill bits?

We use 100% original alloy rods from well-known brands like Guhring, Kennametal, and Cerazizit. We guarantee no recycled materials are used.

Q:Is customization available for non-standard sizes?

Yes, non-standard products are available according to customer drawings or samples. We also design and manufacture products based on specific requests.

Q:What coating options are offered?

We offer AlTiN, AlCr-based, TiSiN, and AlCr-Blue coatings. These provide hardness ranging from 3100 to 3700 HV for enhanced performance.

Q:What is the lead time for orders?

The average lead time is within 15 workdays for both peak season and off-season periods.

Q:What are the payment terms?

We accept LC, T/T, and Western Union as terms of payment.