How should I drill to avoid cracking the wall?

Ensure you drill perpendicular to the wall, make smaller pilot holes first, and drill in short bursts if using a single-speed drill to prevent overheating.

What is the maximum diameter available?

The product range includes diameters up to 598mm.

Is this bit compatible with core drilling machines?

Yes, it is designed specifically for use with core drilling machines.

Quality Diamond Wet Drilling Tools Core Drill Bit

Name: Quality Diamond Wet Drilling Tools Core Drill Bit
Brand: Quanzhou Best Diamond Tools Co., Ltd.
SKU: 690018811

Fujian, ChinaQuanzhou Best Diamond Tools Co., Ltd.

US$56.00

10 Pieces

Product profile

Customization

Available

Product

Diamond Tip Drill Bit

Connection

Gas 1/2 Screw, Unc 1-1/4-7 Female Screw

Model NO.

BTDD-01

Machine

Core Drilling Machine

Transport Package

Plywood

Specification

456

Trademark

BEST

Origin

China

Production Capacity

5000

Key features

Heavy-Duty Multi-Purpose Design: Suitable for drilling reinforced concrete, cinder block, stone, brick, and various masonry materials.

Wide Diameter Range Available: Offers sizes from 25mm to 598mm with corresponding segment heights for diverse drilling needs.

Standard Thread Connection: Features 1 1/4 - 7 UNC thread compatible with standard core drilling machines.

Optimized Segment Height: 10mm segment height designed for efficient cutting and durability in hard materials.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-peak seasons.

Flexible Payment Options: Accepts T/T, PayPal, and Western Union for secure international transactions.

FOB Xiamen Shipping: Convenient shipping terms from Xiamen Port with CIF and CFR options available.

Durable Steel Tube Construction: Built with high-quality steel tube for enhanced strength and longevity during operation.

Company profile

Quanzhou Best Diamond Tools Co., Ltd.

Fujian, China

CertifiedBusiness Type: Trading CompanyExport Year: 2017-07-22 CertifiedNearest Port: Xiamen PortAverage Response Time: ≤18h CertifiedTerms of Payment: T/T, PayPal, Western Union CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryQuanzhou Best Diamond Tools Co., Ltd. is identified as a China-based manufacturer/factory and limited company in Fujian, although another record describes the company as a trading company. It focuses on diamond tools for stone and concrete applications, including wire saws, blades, segments, drilling, grinding, and polishing products. The supplier reports ISO 9001 certification, 6–10 R&D engineers, and 6–10 quality-control staff. Export sales account for 90%, with exporting activity reported since 2017 and broad global market coverage. One production line and order fulfillment within 15 working days are stated for both peak and off-peak periods. The supplier claims solution-oriented product selection, after-sales service, timely delivery, and quality inspection. Customer-related trade records identify SIVA GRANITE PRODUCTS and granite wire saw transactions, but the available evidence is limited.

CertificationsThe supplier explicitly reports holding ISO 9001 certification. This is direct evidence of a certified quality-management system and supports a positive assessment for certification holding.

After-Sales capabilityThe supplier states that it provides after-sales service and maintains client relationships, while also describing patient pre-order communication and solution support for customer requirements. These statements provide explicit evidence of a stated after-sales and customer-support capability, although no service metrics or case outcomes are supplied.

R&D capabilityThe supplier claims newly developed technology and reports 6–10 R&D engineers. Its description also states that it expanded into stone machinery exports in 2019 to improve product selection, providing some evidence of technical development and application knowledge.

Production capacityThe supplier offers a broad range of diamond tools and reports one production line, with order fulfillment within 15 working days in both off-peak and peak seasons. These stated production and lead-time capabilities support a positive assessment, although capacity scale and output details are limited.

Customization capabilityThe supplier describes discussing material hardness, abrasiveness, machine power, speed, processing problems, and customer expectations before selecting suitable tools. This directly supports application-specific solution and customization capability.

Client casesTrade records associate the supplier with SIVA GRANITE PRODUCTS and identify granite wire saw products shipped through Xiamen, including two listed product configurations. These are explicit customer-related transaction records, though they provide limited detail on project scope, performance, or repeat-business outcomes.