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Wet Diamond Core Drill Bits for Drilling Reinforced Concrete Used on Hand Drill
US$11.50-128.00
50 Pieces
Sample price:US$30.00/piece.Request sample
Product profile
Customization
AvailableType
Core DrillUsage
Masonry DrillingModel NO.
CWDACertification
AISIDiameter
25mm-350mmEffective Length
450mmSegment Height
10mmTransportation
Ocean, Land, Air, ExpressArbor
1 1/4"-7Drilling Types
Wet DrillingEquipment
Hand Drill, Core Drilling MachineTransport Package
Neutral Packaging, Finishing PackagingSpecification
EN13236, MPATrademark
COREDIAMOrigin
HebeiHS Code
82071910Production Capacity
50, 000 PCS/YearKey features
Laser Welding Technology: Manufactured with advanced laser welding for superior durability and efficiency.
Customizable Segment Shape: Segment shape can be customized to meet specific drilling requirements.
OEM Working Length: Accepts OEM requests for working length customization.
Wide Diameter Range: Available in diameters from 25mm to 350mm for various applications.
Fast Drilling Performance: Achieves fast drilling with very good sharpness, especially when cutting steel.
Reasonable Lifespan: Designed for wet core drilling with a reasonable service life.
Suitable for Reinforced Concrete: Ideal for drilling reinforced concrete, masonry, and wet concrete structures.
Comprehensive Customization: Accepts customized lengths and segments for wet core drills.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2007-01-01Nearest Port: Tianjin Seaport, Beijing Airport, Shanghai PortAverage Response Time: ≤4.31hTerms 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.
Product Q&A
Q:What is the diameter range of the drill bits?
A:
The diameter range is from 25mm to 350mm.
Q:Can the segment shape be customized?
A:
Yes, the segment shape can be customized.
Q:What is the delivery time for samples?
A:
It takes 2 weeks for samples after the order is confirmed.
Q:What is the delivery time for batch orders?
A:
It takes 3 weeks for batch orders after payment is confirmed.
Q:Is OEM service available for working length?
A:
Yes, OEM working length is accepted.
Send Inquiry
*To:
Shijiazhuang Corediam Tools Technology Co., Ltd.
Shijiazhuang Corediam Tools Technology Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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