What are the standard diameter and length options?

Standard diameters range from D3.00 to D25.00mm, with lengths available in 3D, 5D, 8D, and 12D increments.

What industries can use these tools?

Our tools are widely used in aerospace, automotive, motorcycle, medical treatment, and mold processing industries.

Do you have stock for standard sizes?

Yes, we offer a wide range of standard internal coolant drills in various specifications with immediate delivery options.

Tungsten Solid Carbide Twist Drill Bit with Coolant Drill Bit Long Carbide Drill Bits HRC55

Name: Tungsten Solid Carbide Twist Drill Bit with Coolant Drill Bit Long Carbide Drill Bits HRC55
Brand: CHANGZHOU DELEVEL TOOLS CO., LTD.
SKU: 2183598705

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.

RDT

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 Carbide Material: 100% original alloy rods from Guhring, Kennametal, and Cerazit ensure superior wear resistance.

Internal Cooling System: Advanced coolant design minimizes heat and optimizes chip evacuation for stable cutting.

Custom Solutions Available: Non-standard products available based on customer drawings or samples for specific needs.

Wide Standard Range: Stock available for diameters D3-D25mm with 3D, 5D, 8D, and 12D length options.

High Hardness Coating: Options include AlTiN, AlCr-based, and TiSiN coatings with hardness up to 3700 HV.

15+ Years Experience: Leading manufacturer with over 15 years in solid carbide cutting tool industry.

On-Time Delivery: Commitment to 100% on-time delivery with lead times within 15 workdays.

Versatile Applications: Suitable for aerospace, automotive, medical, and mold processing machining.

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.