What is the hardness of the drill bits?

The hardness ranges from HRC 45 to HRC 65, with specific options like 45, 55, 58, 60, and 65.

What coatings are available?

Available coatings include AlTiN, TiAlN, TiSiN, TiN, DLC, Nano, and Diamond.

High Hardness Solid Carbide Longer Twist Drill Bits for Metal Drilling

Name: High Hardness Solid Carbide Longer Twist Drill Bits for Metal Drilling
Brand: CHANGZHOU WEIYU TOOLS FACTORY
SKU: 2062990092

Jiangsu, ChinaCHANGZHOU WEIYU TOOLS FACTORY

US$3.40

5-19 Pieces

US$3.21

20-49 Pieces

US$3.02

50+ Pieces

Sample price:US$5.00/piece.Request sample

Product profile

Customized

Standard

China

Length

Taper-length

Model NO.

Carbide Twist Drill Bit

Type

Twist Drill Bit

Material

Tungsten Carbide

Usage

Wood Drilling, Well Drilling, Metal Drilling

Over All Length

38-330mm

Precision

0.005~-0.01mm

Transport Packing

Each Piece with Plastic Box in Carton

Flute Diameter

0.3-40mm

HRC

45/55/60/65HRC

Controlling Mode

CNC Tooling System

Finish Surface

Plain Surface, The Side, Socket

Transport Package

Carton Packing

Specification

Multiple specifications

Trademark

WEIYU

Origin

China

HS Code

8207709000

Production Capacity

5000 Piece/Pieces Per Mouth

Key features

High Hardness Material: Tungsten Carbide with HRC 45-65 hardness options for superior durability.

Wide Size Range: Flute diameter from 0.3mm to 40mm and overall length from 38mm to 330mm.

Multiple Coating Options: Available with AlTiN, TiAlN, TiSiN, TiN, DLC, and Diamond coatings.

Versatile Material Application: Suitable for carbon steel, alloy steel, stainless steel, titanium alloy, and more.

Fast Delivery Time: Standard delivery within 3 to 5 days for most orders.

OEM and ODM Services: Full customization available from samples or designs with flexible options.

Advanced Equipment: Manufactured using imported German and Swiss high-precision machinery.

Company profile

CHANGZHOU WEIYU TOOLS FACTORYJiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryCHANGZHOU WEIYU TOOLS FACTORY is a China-based limited company established in 2004 with 18 employees and one production line. It supplies carbide end mills and carbide drills, reporting annual output of 40,000 solid carbide end mills and 30,000 carbide drills. The supplier states that it holds ISO9001 certification and offers extensive customization, including design- and sample-based customization. It also reports OEM service for popular brands. However, quality assurance is explicitly indicated as unavailable, finished-product inspection has instructions but no written records, and complaint-handling and corrective-action procedures lack written records. R&D resources are limited to one engineer, with no SDK availability. Export experience is limited, with exports representing 1%–10% of sales and beginning one year ago. Financial and sustainability-related evidence is insufficient for a firm assessment.

Supplier typeThe supplier is CHANGZHOU WEIYU TOOLS FACTORY, a China-based limited company operating in Jiangsu and established in 2004. It is not part of a larger company group and specializes in carbide cutting tools, particularly carbide end mills and carbide drills.

CertificationsThe supplier states that it has passed ISO9001 quality management system certification. However, the quality-control assessment separately states that quality assurance is not available, so the evidence supports certification holding but also indicates weaknesses in practical quality-assurance implementation.

Production capacityThe supplier operates one production line and reports annual output of 40,000 solid carbide end mills and 30,000 carbide drills, supported by CNC, grinding, laser-marking, lathe, and notch-grinding equipment. However, it does not conduct ongoing quantity reconciliation for batches and has no standard operating procedure for outsourced manufacturing, indicating production-control weaknesses.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. Its product description also states that it produces specially customized cutting tools, providing direct evidence of broad customization capability.