Do your products meet quality standards?

Yes, our products are produced strictly in accordance with international and industry standards.We have advanced production equipment and quality control systems to ensure product quality and consistency.

What is your term of payment?

30% by TT in advance,and balance before delivery.

How long is your delivery time?

Generally it is 7-10 days,If the goods are in stock.Or it is 20-30 days. If the goods are not in stock,it is according to quantity.

Precision 90 Degree HSS Countersink Drill Bit for Steel

Name: Precision 90 Degree HSS Countersink Drill Bit for Steel
Brand: Jiangsu Borui Tools Co., Ltd.
SKU: 1976795241

Jiangsu, ChinaJiangsu Borui Tools Co., Ltd.

US$2.90-3.90

100 Pieces

Sample price:US$8.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

DIN

Length

Metric

Type

Core Drill Bit

Material

High Speed Steel

Usage

Metal Drilling

Shank

Round Shank

Transport Package

Single Packing with PVC Plastic Tube

Specification

4.3-60mm

Trademark

SUBORUI

Origin

China

HS Code

8207509000

Key features

High Speed Steel Material: Constructed from premium HSS for superior durability and cutting performance.

90 Degree Cutting Angle: Precision 90-degree angle designed for accurate metal chamfering and countersinking.

Wide Size Range: Available in sizes from 4.5mm to 60mm to meet diverse drilling requirements.

Round Shank Design: Features a round shank for secure grip and compatibility with standard chucks.

3 Flute Configuration: Optimized 3-flute design ensures efficient chip removal and smooth cutting.

DIN Standard Compliance: Manufactured to meet strict DIN standards for dimensional accuracy and quality.

ISO 9001 Certified: Quality management system certified to ensure consistent product reliability.

CE & RoHS Certified: Complies with EU safety standards and is free from hazardous substances.

Company profile

Importers and ExportersStandardized quality controlProduct CertificationHigh Repeat Buyers Choice

Jiangsu Borui Tools Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤1.54h

AI-Powered supplier vetting

SummaryThe supplier demonstrates R&D, customization, and export capabilities. It offers 3D design, ODM, sample- and design-based customization, full customization, and minor customization, with new products developed during the past year. R&D audit documentation is available, and technical engineers support production and after-sales activities. Quality evidence includes CE certification, ISO 9001:2015, BSCI, documented finished-product inspection procedures, and a stated 100% pre-shipment inspection process. The supplier has exported for eight years, with exports accounting for 71%–90% of total sales, and holds self-operated import/export rights. Overseas infrastructure is limited: it has no overseas warehouse, showroom, agents, or branches, and reports overseas services only as training. Financial credibility cannot be determined because the provided slices contain no assessable financial results or capacity data. Production scale and named customer cases are also insufficiently documented. Digital operational...

Supplier typeThe supplier is positioned as an R&D-oriented OEM/ODM manufacturer offering 3D design and multiple customization models, including sample-based, design-based, full, and minor customization. Its stated services cover prototyping through mass production for OEM/ODM projects, while it does not provide OEM services for popular brands.

CertificationsThe supplier reports CE product compliance certification, an ISO 9001:2015 management-system certificate, and BSCI social-responsibility certification. The company description also states ISO 9001-certified processes, supporting a documented quality-management position.

After-Sales capabilityTechnology engineers provide technical support for production and after-sales service, and the supplier identifies training as an overseas service offering. However, it has no overseas warehouse, showroom, agent, or branch, so the evidence supports technical after-sales assistance but not a broad local overseas service network.

R&D capabilityThe supplier reports R&D engineers responsible for confirming requirements, designing products, and providing technical support; it has available design-input, output, review, verification, and validation documentation; and it developed new products during the past year. The company also states it has over 20 patented technologies, although no patent details are provided, and it does not have an available SDK.

Production capacityThe supplier states that its engineers support production, uses documented and uniformly followed finished-product inspection instructions, and claims 100% pre-shipment inspection. It also reports written procedures and records for assessing service-capable suppliers, but the provided slices do not establish production capacity, equipment, factory scale, or throughput.

Customization capabilityCustomization capability is explicitly broad: the supplier offers customization from samples, customization from designs, full customization, minor customization, 3D software design services, and ODM services. Its company description further states that OEM/ODM support spans prototyping to mass production.

Product Q&A

Q:Are you a factory or trading company?

We are 18 years+ professional manufacturer in drill bit tools industry.Welcome to visit our company.

Q:What types of products do you manufacture?

We specialize in producing a wide range of twist drill products, including: Standard Twist Drills: For general-purpose drilling in wood, plastic, and soft metals. Industrial-Grade Twist Drills: Engineered for high-performance applications in hardened steel, stainless steel, and alloys. Customized Solutions: Tailored drills based on client specifications (material, coating, geometry, or packaging). Whether you need bulk orders or specialized designs, we deliver precision and reliability.

Q:What is your minimum order quantity (MOQ)?

Our MOQ varies depending on the product type, specifications, and packaging requirements. To get a tailored solution, please contact our sales team. We'll respond promptly with a detailed proposal that fits your needs.

Q:How do I purchase your products?

Contact our sales team directly and they will provide you with product catalogues, quotations and order processing services.

Q:What certifications do your products have? Are they environmentally friendly?

Our twist drills are certified with CE (EU safety compliance), RoHS (Restriction of Hazardous Substances), and ISO 9001 (quality management). The RoHS certification guarantees our products are free from harmful substances like lead and mercury, aligning with global environmental standards. We prioritize both performance and sustainability.