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Rock Mining Taper Drill Bit 28mm
US$3.50
100-1,999 Pieces
US$3.40
2,000-4,999 Pieces
US$3.30
5,000+ Pieces
Sample price:US$3.80/piece.Request sample
Product profile
Customization
AvailableCustomized
CustomizedLength
65mmModel NO.
chisel bitType
Chisel BitsMaterial
High Carbon SteelUsage
Well DrillingPower Type
PneumaticCondition
NewProcess
Heat TreatmentColor
Golden, Yellow, Customized.Transport Package
Wooden CaseSpecification
38mmTrademark
KaiyuOrigin
Taizhou, ZhejiangHS Code
8207199000Production Capacity
1000000 PCS Per MonthKey features
Customized Color Options: Available in Golden, Red, Blue, and other custom colors.
Wide Diameter Range: Diameters from 28mm to 50mm available for various drilling needs.
High Carbon Steel Material: Constructed from 35CrMoNiV high carbon steel for durability.
Fast Delivery Time: Standard delivery within 3 to 15 days depending on season.
ISO 9001 Certified: Manufacturing process certified under ISO9001:2015 standards.
48 Years Experience: Factory specialized in drilling tools and spare parts for over 48 years.
OEM and ODM Services: Full OEM and ODM services available for custom manufacturing.
Company profile

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2004-06-01Nearest Port: NINGBO PORT, SHANGHAI PORTAverage Response Time: ≤15hTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryKaiyu (Zhejiang) Drilling Tools Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory, specializing in rock-drilling products including button bits, DTH bits and hammers, drill rods, and drill pipes. It reports ISO 9001 certification, six production lines, experienced technical and R&D personnel, and a quality-control system. Stated annual capacities include 120,000 button bits, 60,000 DTH bits, and 6,000,000 chisel bits, with lead times of within 15 workdays in both off-peak and peak seasons. The supplier serves multiple global regions and has export capability through agents and self-operated import/export rights. However, the provided information does not substantiate after-sales service arrangements, financial credibility, product customization, or specific customer cases.
Supplier typeThe supplier is described as a trading company and also as a trading company/manufacturer or factory. Its legal form is a limited company located in Zhejiang, China, indicating a mixed commercial and manufacturing profile.
CertificationsThe supplier explicitly reports ISO 9001:2015 Quality Management System Certification and lists ISO 9001 under its management-system certifications. This supports the presence of a documented quality-management certification.
R&D capabilityThe supplier reports experienced and high-tech personnel, foreign equipment and technologies, unique techniques, specialized equipment, and R&D engineers with 6–10 years of experience. These statements support technical development capability, although no specific patented or newly developed products are identified.
Production capacityThe supplier reports six production lines, quality-control inspection, and annual capacities of 120,000 button bits, 60,000 DTH bits, and 6,000,000 chisel bits. It also states order fulfillment within 15 workdays during both peak and off-peak seasons, supporting a substantial and responsive production capability.
Product Q&A
Q:What is the delivery time?
A:
Delivery takes 3 to 15 days. During peak season, lead time is within 15 workdays, and off-season is also within 15 workdays.
Q:What payment terms do you accept?
A:
We accept T/T, Western Union, L/C at sight, LC, D/P, and other standard international commercial terms.
Q:Can the drill bit color be customized?
A:
Yes, colors such as Golden, Red, and Blue are available, and custom colors can be arranged.
Q:What materials are used for the drill bits?
A:
The bits are made from High Carbon Steel, specifically 35CrMoNiV, ensuring high quality and durability.
Q:What is the minimum order quantity?
A:
The provided text does not specify a minimum order quantity (MOQ).
Send Inquiry
*To:
Kaiyu (Zhejiang) Drilling Tools Co., Ltd
Kaiyu (Zhejiang) Drilling Tools Co., Ltd*Content:
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