What is the arbor size for these bits?

The standard arbor size is 1 1/4'-7 for the listed models.

Do you provide technical support for projects?

Yes, we help to design the total solution of core drilling projects.

Premium Diamond Core Drill Bits for Concrete with 450mm Effective Length/Diamond Tools

Name: Premium Diamond Core Drill Bits for Concrete with 450mm Effective Length/Diamond Tools
Brand: Shijiazhuang Corediam Tools Technology Co., Ltd.
SKU: 745970232

Hebei, ChinaShijiazhuang Corediam Tools Technology Co., Ltd.

US$10.00-150.00

10 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Core Drill

Usage

Masonry Drilling, Concrete Drilling

Model NO.

CWDA

Manufacturing Technology

Laser Welding

Segment Height

10mm

Application

Wet Drilling Concrete, Reinforced Concrete

Install Quipment

Stand Driller, Hand-Held Driller

Transport Package

Carton, Pallet

Specification

25mm-350mm

Trademark

COREDIAM

Origin

China

HS Code

82071910

Production Capacity

2000 Pieces Per Month

Key features

Laser Welded Construction: Advanced laser welding ensures high strength and durability for the core bits.

Turbo Segment Design: Special turbo segments provide excellent sharpness for fast drilling in concrete.

Wide Size Range: Available in sizes from 25mm to 350mm to meet various drilling needs.

Customizable Options: Segment height, working length, and connection type can be adjusted on request.

Fast Drilling Speed: Achieves fast drilling, especially when cutting through steel reinforcement.

Versatile Application: Suitable for wet drilling in concrete, reinforced concrete, and masonry.

Project Solution Support: We help design total solutions for core drilling projects.

Reasonable Lifespan: Designed for superior efficiency and a reasonable operational lifespan.

Company profile

Shijiazhuang Corediam Tools Technology Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-01-01Nearest Port: Tianjin Seaport, Beijing Airport, Shanghai PortAverage Response Time: ≤3.51hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryCorediam Tools is a China-based limited company operating as both a trading company and manufacturer/factory in Hebei. It focuses on diamond tools for construction, stone processing, and DIY markets, with 10 production lines and stated output across saw blades, grinding wheels, core drill bits, and wire saws. The supplier reports ISO 9001 and ISO 14001 management-system certifications, 11–20 R&D engineers, 21–30 quality-control staff, automated manufacturing equipment, and product authentication to German MPA and EU EN 13236 standards. Its export network covers more than 50 countries and exports account for 90% of total sales. Evidence supports production, quality-management, innovation, and international-export capabilities. However, the provided information does not establish after-sales service performance, financial credibility, customization capability, or specific customer cases.

Supplier typeThe supplier is identified as a trading company in one record and as both a trading company and manufacturer/factory in another. Its stated activities include researching, developing, manufacturing, and marketing diamond tools, indicating a combined trading and manufacturing profile rather than a purely commercial intermediary.

CertificationsCorediam reports ISO 14001 and ISO 9001 certification for supplier management systems. Its products are also stated to be authenticated to German MPA and European Union EN 13236 standards, providing explicit evidence of formal management-system and product-standard credentials.

R&D capabilityCorediam explicitly emphasizes technology innovation and R&D, reports 11–20 R&D engineers, and describes advanced automatic pressing, sintering, and German Dr. Fritsch automatic laser-welding machinery. Its broad product range and high-tech-enterprise description support an established innovation and development capability.

Production capacityThe supplier reports 10 production lines and manufacturing output covering diamond saw blades, laser-welded blades, grinding cup wheels, core drill bits, and diamond wire saws. It also states that automated pressing, sintering, and laser-welding equipment is used, with rigorous inspection and quality-control processes, providing explicit evidence of multi-product production capacity.