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Contact Us

Send your SDS-Plus, SDS-Max, TCT or diamond core-bit requirements directly to our team.

Submit Your Project Requirements

For a quote-ready RFQ, share product family, shank or thread, substrate, each diameter × length and quantity, packaging, benchmark position and sales channel.

For Faster Quotation

Include product type, size, quantity, packaging, brand option, performance benchmark and target price position — the fastest route for distributors, wholesalers and OEM/private-label buyers with recurring demand.

Retail and one-off purchasing is handled most efficiently through local distribution channels.

All business inquiries are handled with strict confidentiality.

Direct Contact

Get In Touch

Connect directly with our team for immediate assistance and professional consultation.

Primary Contact

Zhi Wang (王智)
Available for technical consultation, quotations, and business partnerships
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Scan the QR code to add Zhi Wang on WeChat for product, pricing and RFQ questions.

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Company Headquarters

Zhonghuan Tools Co., Ltd.
中环工具有限公司
Building 4, Qingjiang Industrial Zone
Qingjiang Town, Yueqing City
Wenzhou City, Zhejiang Province
China
Manufacturing facility and R&D center

Global Business Support

Simple B2B support for distributors, wholesalers, importers, and private-label tool buyers.

OEM/ODM Customization

SDS-Plus and SDS-Max drill bits are our core factory-made lines. TCT and diamond core bits extend the program for larger openings. We support buyer size ranges, marking and private-label packaging.

B2B Distribution & Export

Wholesale supply led by SDS assortments, with TCT and diamond coring, chisels and related drilling accessories for distributors, wholesalers and tool importers with recurring demand.

Technical Support

Tell us the material, hole size, hammer or coring-machine interface and target channel. We help choose the practical SDS or core-drilling setup before quotation.