What is the accuracy of your instruments?

Our natural electric field instruments have over 30 years of advanced technology and market testing. Accuracy is over 95% with a 100% customer feedback rate.

What after-sales services are provided?

We respond to questions within 24 hours (excluding holidays), provide 24-hour technical support, offer free replacements for quality failures, and maintain a 24-hour service hotline.

Qideli Down to Hole Bits HD55A Shank Drill Series 146mm Mining Bit

Name: Qideli Down to Hole Bits HD55A Shank Drill Series 146mm Mining Bit
Brand: PUTIAN QIDELI ENGINEERING EQUIPMENT CO., LTD.
SKU: 2076596132

Fujian, ChinaPUTIAN QIDELI ENGINEERING EQUIPMENT CO., LTD.

US$30.00-130.00

5 Pieces

Product profile

Customization

Available

Customized

Length

Taper-length

Model NO.

HD55A

Type

Core Drill Bit

Material

Solid Carbide

Usage

Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling

Manufacturing Process

Forging

Number of Water Holes

2 Holes

Surface Treatment

Spray-Paint

Head Shape

Flat/Convex

Spline

Weight

Transport Package

Wooden Case Packing

Specification

HD55A-146MM

Trademark

QIDELI

Origin

China

Production Capacity

50000 PCS/Year

Key features

Customized Manufacturing: Supports custom forging, spray-paint, and specific water hole configurations.

Extended Alloy Life: Superior alloy material ensures longer service life compared to similar products.

High Drilling Efficiency: Wear-resistant drill buttons keep the bit sharp for improved drilling speed.

Stable Drilling Speed: Scraping and cutting design ensures consistent rock breaking performance.

Wide Application Range: Suitable for carbonate rock, limestone, chalk, clay, siltstone, and sandstone.

Solid Carbide Material: Constructed from high-quality solid carbide for durability and performance.

35+ Years Experience: Professional manufacturer with over 35 years of history and global reach.

One-Stop Service: Provides comprehensive solutions including DTH hammers, bits, and drill pipes.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced Team

PUTIAN QIDELI ENGINEERING EQUIPMENT CO., LTD.

Fujian, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤3.24h

AI-Powered supplier vetting

SummaryThe supplier demonstrates flexible customization, ODM and OEM capability, recent new-product activity, ISO 9001 certification, in-stock capacity, and more than 15 years of heat-treatment experience. It has export capability, eight years of exporting experience, and access to overseas agents or branches, but no overseas warehouse or showroom and no participation in offline trade shows. Operational controls show weaknesses: there is no valid manufacturing-capacity contract with its related subcontractor, no written supplier-service assessment or approved-supplier list, no written corrective-action or complaint-handling procedures, and no raw-material traceability. Quality inspection is performed by one inspector, with finished products checked by packing staff. Innovation evidence is limited by zero stated patents, no SDK, no private molds, and no 3D software design service. Financial records are identified for 2021–2023, but their results are not provided.

Supplier typeThe supplier is a manufacturing-oriented provider with CNC lathe and CNC processing facilities, in-stock capability, self-operated import/export rights, and stated experience in heat treatment. It also offers services through overseas agents or branches, but the stated number of countries with overseas services is zero and no overseas warehouse or showroom is available.

CertificationsThe supplier reports an ISO 9001 supplier management-system certification. This is explicit evidence of a recognized quality-management certification, although no other certifications are identified.

After-Sales capabilityThe supplier accepts several service payment methods and states peak-season lead time of one month and off-season lead time within 15 workdays. However, it has no written corrective and preventive action procedures or records and no written customer-complaint handling procedures or records, limiting evidence of structured after-sales management.

R&D capabilityThe supplier reports a new product within the past year, flexible design customization, ODM service, and use of AutoCAD and SolidWorks. Innovation infrastructure appears limited by no available SDK, zero stated R&D patents, no private-mold capability, and no 3D software design service.

Customization capabilityThe supplier explicitly provides flexible customization, can analyze and design products according to customer usage, and can process supplied drawings. It also reports ODM and OEM capability, providing strong direct evidence of customization support.

Product Q&A

Q:What equipment does QIDELI supply?

We supply DTH drilling rigs, water well drilling rigs, screw and piston air compressors, pneumatic rock drills, drill bits, Tricone bits, DTH hammers, drill rods, and spare parts.

Q:What payment methods are accepted?

We accept TT, Western Union, LC, and other standard payment methods.

Q:How is the shipment handled and what is the lead time?

Large or heavy products are shipped by sea or land; small items by DHL, UPS, FedEx, or TNT. Peak season lead time is one month, off-season is within 15 workdays.

Q:What is your quality control process?

We have experienced QC staff who conduct strict inspection and testing for every order before shipping.

Q:Is the equipment difficult to operate?

The instrument is easy to operate. We provide a detailed operation manual via email, and the detector allows direct mapping with one button without needing a computer.