What is the after-sales service policy?

Our sales team responds within 24 hours (excluding holidays), technical support is available anytime, and we offer free replacements for quality issues.

What shipping methods are available?

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

Is customization available?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization.

Down The Hole Drill Rig Spare Parts Ql30 DTH Rock Drill Bit 3′ ′ Inch (90mm) For3′ ′ Inch DTH Hammer Bit

Name: Down The Hole Drill Rig Spare Parts Ql30 DTH Rock Drill Bit 3′ ′ Inch (90mm) For3′ ′ Inch DTH Hammer Bit
Brand: Maxdrill Rock Tools Co., Ltd.
SKU: 758503102

Guizhou, ChinaMaxdrill Rock Tools Co., Ltd.

US$190.00

1-4 Pieces

US$182.00

5-9 Pieces

US$173.00

10-19 Pieces

US$167.00

20+ Pieces

Sample price:US$173.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

6 Months

Model NO.

QL30

Certification

ISO 9001:2015

Standard

GB/T2828.1-2003

Surface Treatment

Painting

Manufacturing Process

Machining

Material

Alloy Steel & Tungsten Carbides

Type

DTH Hammer Bit

Use

Well Drilling

Other Name

Ql 30 Down The Hole Drill Bits

Color

Red, Gold

Application

Water Well Drilling

Face

Flat, Concave

Usage

High Air Pressure Down The Hole Drilling

Diameter

90mm

Transport Package

Plywood Carton or Plywood Pallet

Specification

Trademark

Maxdrill

Origin

China

HS Code

82071300

Production Capacity

10000/PC Year

Key features

High-Quality Materials: Constructed from Alloy Steel and Tungsten Carbides for durability.

Wide Size Range: Available in diameters from 90mm to 356mm with various shank styles.

Customization Options: Supports customization from samples, designs, and flexible minor adjustments.

Strict Quality Control: 100% visual inspection of finished products by experienced QC team.

Fast Delivery: 2-3 days if in stock; normally 25 days for production based on quantity.

Comprehensive Warranty: 6 months warranty with free replacement for quality-caused failures.

Certified Quality: ISO 9001:2015 certified manufacturing process and standard compliance.

Low MOQ: Minimum Order Quantity is only 2 PCS, suitable for testing and small batches.

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: ≤2.78h

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.