What is the accuracy?

Our natural electric field instruments have been made for more than thirty years, with advanced technology and market test. We have obtained many invention patents. Our customer feedback rate reaches 100%. Accuracy over 95%.

What are the after-sales services?

Our sales team will response for your question within 24 hours (Holidays Excluded). Technical Support will be available in any time. Free replacement will provide once the failure confirmed caused by our product quality. 24 Hours service hotline.

Down to Hole Drilling Bits Durable High Air Pressure Bit

Name: Down to Hole Drilling Bits Durable High Air Pressure Bit
Brand: PUTIAN QIDELI ENGINEERING EQUIPMENT CO., LTD.
SKU: 2076366272

Fujian, ChinaPUTIAN QIDELI ENGINEERING EQUIPMENT CO., LTD.

US$78.00

50-99 Pieces

US$75.00

100-199 Pieces

US$70.00

200+ Pieces

Product profile

Customization

Available

Customized

Non-Customized

Length

Taper-length

Model NO.

HD35A

Type

Center Drill Bit

Material

High Carbon Steel

Usage

Well Drilling, PCB Drilling, Metal Drilling

Button Shape

Spherical, Parabolic, Ballistic, Sharp, Flat

Face Design

Flat, Convex, Concave, Double Gauge,Drop Center

Shank Type

HD, Cop, SD, Ql, Mission, Br, Numa,DHD,Mach

Diameter

2 Inch to 30 Inch

Delivery Time

Within 20working Days

Model No.

HD35-90

Transport Package

Wooden Case

Trademark

QIDELI

Origin

China

Production Capacity

500000PCS Per Year

Key features

Durable Alloy Material: Features longer life and wear-resistant buttons for extended usage compared to similar products.

High Drilling Efficiency: Buttons stay sharp to greatly improve drilling speed and maintain stable performance.

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

Customizable Button Shapes: Available in Spherical, Parabolic, Ballistic, Sharp, and Flat shapes.

Customizable Face Designs: Options include Flat, Convex, Concave, Double Gauge, and Drop Center designs.

Multiple Shank Types: Offers HD, Cop, SD, Ql, Mission, Br, Numa, DHD, and Mach shank types.

Rapid Delivery: Delivery time is within 20 working days for standard orders.

Comprehensive Product Line: Supplier of DTH rigs, hammers, bits, compressors, and drill rods for global mining.

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: ≤4.26h

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 do you supply?

DTH drilling rig, water well drilling rig, screw air compressor, piston air compressor, pneumatic rock drill, drill bit, Tricone bit, DTH hammer, drill rod, spare parts.

Q:How can I make payment?

TT, Western Union, LC etc.

Q:How is the shipment and how long does it take?

For large quantity or heavy products, we ship by sea shipping or land shipping. Shipping efficiency depends on country and city you want to ship to. For small and delicate products, we ship by DHL, UPS, Fedex or TNT. You can also appoint shipping method you like before we ship.

Q:How is your quality control?

We have our own experienced QC. There will be strict inspection and testing for every order before shipping out.

Q:Is it difficult to operate and make the graph?

The instrument is easy to operate and we will send you the detailed operation manual via email. The detector directly mapping with one button, no need computer drawing mapping.