How do you ensure product quality?

We have experienced QC staff performing 100% visual inspection and strict testing on every order before shipping.

What are the recommended shipping methods?

For samples, we suggest courier express (DHL/UPS/TNT/FEDEX) or air freight. For bulk orders, air or sea freight is recommended.

What after-sales services are provided?

Our sales team responds within 24 hours, technical support is available anytime, and free replacements are offered for quality issues.

Maxdrill Extension Rod Hex28 with Threads R28/R32 3100 mm for Top Hammer Drilling

Name: Maxdrill Extension Rod Hex28 with Threads R28/R32 3100 mm for Top Hammer Drilling
Brand: Maxdrill Rock Tools Co., Ltd.
SKU: 1990875805

Guizhou, ChinaMaxdrill Rock Tools Co., Ltd.

US$45.00

10-49 Pieces

US$41.00

50-99 Pieces

US$38.50

100-499 Pieces

US$36.50

500-999 Pieces

US$35.00

1,000+ Pieces

Product profile

Customization

Available

After-sales Service

Yes

Warranty

6 Months

Model NO.

2128R32R2831

Certification

ISO 9001:2015

Standard

GB/T2828.1-2003

Surface Treatment

Painting

Manufacturing Process

Machining

Material

Alloy Steel & Tungsten Carbides

Application

Drifting, Tunneling and Bolting

Length

3100mm

Weight

15.8kg

Diameter

28mm

Transport Package

Carton&Playwood Pallet or as Request

Specification

Dia.: 28mm~32mm

Trademark

Maxdrill

Origin

China

HS Code

82071300

Production Capacity

10000PCS/Month

Key features

Customizable Dimensions: Lengths available from 2800mm to 4310mm with 28mm or 32mm diameters.

High-Strength Material: Constructed from Alloy Steel and Tungsten Carbides for durability.

OEM/ODM Support: Full customization from samples, designs, or minor adjustments available.

Fast Delivery Options: Stock items ship in 2-3 days; standard production takes 25 days.

ISO 9001 Certified: Manufacturing meets ISO 9001:2015 and GB/T2828.1-2003 standards.

Lifetime Technical Support: 24-hour response time and continuous technical assistance provided.

Quality Assurance: 100% visual inspection and strict testing before every shipment.

Versatile Application: Ideal for drifting, tunneling, bolting, and various rock formations.

Company profile

Years of Export ExperienceSelf-brandedFast Delivery100% Finished Products Inspection

Maxdrill Rock Tools Co., Ltd.

Guizhou, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤5.33h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a trading company located in Guiyang, with associated-company activity in wholesale and retail. It demonstrates broad customization, ODM availability, recent product development, and OEM service for well-known brands. Production information states five production lines and annual output of 100,000 pieces each for button bits, drill rods, shank adaptors, and couplings. Export sales account for 71%–90%, with markets in South America, Europe, and North America. Service procedures for supplier assessment, corrective actions, and complaint handling are documented and followed. However, the supplier reports no overseas warehouse, showroom, agent or branch, or offline trade-show participation; it also has no available SDK. Finished-product inspection has instructions but no written records. No certification information or specific customer names/cases are provided.

After-Sales capabilityThe supplier has clear procedures and followed records for customer complaints, corrective and preventive actions, and service-capability assessment. However, it reports no overseas warehouse, showroom, agent or branch, and no offline trade-show participation, while the stated number of countries offering overseas services is zero; this supports documented complaint handling but limited overseas service infrastructure.

R&D capabilityThe supplier reports new products during the past year and provides ODM services, demonstrating product-development activity. Nevertheless, it has no available SDK, and total R&D engineer experience is stated as two years, so the evidence supports some innovation capability but not a strong or broad technical platform.

Production capacityProduction information states five production lines and annual output of 100,000 pieces each for button bits, drill rods, shank adaptors, and couplings, with exports representing 71%–90% of total sales. The supplier also cites self-provided raw materials, advanced production equipment, and staff training; however, finished-product inspection has instructions but no written records.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently in both the R&D and manufacturing information, indicating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of branded-customer experience. No brand names, project descriptions, order references, or independently verifiable customer cases are provided.