What are the payment terms accepted?

We accept LC, T/T, PayPal, Western Union, small-amount payments, and D/P.

How long is the lead time for production?

During peak season, the lead time is one month. During off-season, it is within 15 workdays.

Do you provide quality inspection for finished products?

Yes, we perform 100% inspection including visual and function inspection, following uniform instructions with 11 dedicated QA/QC inspectors.

DTH Rock Drill Bits - Concave Bit Face for Mining Drilling

Name: DTH Rock Drill Bits - Concave Bit Face for Mining Drilling
Brand: Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
SKU: 2021769422

Hunan, ChinaChangsha Tianhe Drilling Tools and Machinery Co., Ltd.

US$100.00-200.00

1 Piece

Product profile

Customization

Available

Customized

Standard

ISO9001:2015

Model NO.

DHD, Cop, SD, Mission, QL, Mach, Br, Numa

Length

60mm

Type

Drilling Machine

Material

Alloy Steel

Usage

Well Drilling

Mining Object

Petroleum Drilling and Production Equipment

Bit Face

Spherical,Concave,Flat

Application

Water Well,Mining Drilling

Painting

Yellow, Blue, as Customer Needed

Marketing Type

Hot Products 2023

Transport Package

Wooden Case or Carton

Specification

DHD350, MISSION50, SD5, QL50

Trademark

Teamwhole

Origin

Hunan, China

HS Code

820719

Production Capacity

8000PCS a Month

Key features

Concave Bit Face Design: Optimized for all-around applications in medium hard and homogeneous rock formations with good hole deviation control.

High Penetration Rate: Ensures efficient drilling in soft to medium hard formations with low to medium air pressures.

Premium Alloy Steel Material: Features exceptional strength, heat resistance, and durability for the toughest conditions.

Superior Tungsten Carbide: Sourced from China and Europe, offering superior hardness and wear resistance.

Full Customization Available: Offers minor, sample-based, design-based, and full customization options for specific needs.

Wide Bit Face Options: Available in Spherical, Concave, and Flat shapes to suit various rock formations.

Strict Quality Warranty: Includes reliable quality assurance with compensation rules for abnormal breakage.

Global Market Experience: 17 years of export experience serving South America, Europe, Asia, Africa, and Australia.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Changsha Tianhe Drilling Tools and Machinery Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 17 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤10.05h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company rather than a professional technical supplier. It provides 3D software design, ODM, and multiple customization options, including full customization and customization from samples or designs. Product inspection procedures are documented and consistently followed, while supplier-service assessments and corrective-action procedures are also documented. The company has inventory capability, export experience, and has participated in the Perumin exhibition, but it has no overseas agents, branches, warehouse, showroom, or stated overseas service coverage. Innovation evidence includes new products introduced during the past year and ODM availability, but there is no SDK and no OEM service for popular brands. Manufacturing capacity has a stated contractual deficiency involving related subcontractors. Digital-management information is mixed: ERP use is reported, while broader digital-process construction is reported as not yet started. No certification, financial...

Supplier typeThe supplier is explicitly classified as a trading company and is also stated not to be a professional technical supplier. However, it provides 3D software design services, so its role includes service coordination beyond simple product trading.

After-Sales capabilityThe supplier reports inventory capability and offers training, repair, equipment installation, maintenance, and debugging. However, it has no overseas agents or branches, no overseas warehouse or showroom, and states zero countries for overseas service coverage, limiting evidence of an established international after-sales network.

R&D capabilityInnovation-related evidence includes new products within the past year, ODM services, 3D software design, and broad customization. Nevertheless, the supplier has no available SDK, does not provide OEM services for popular brands, and reports that broader enterprise digital-process construction has not started, although ERP use is also reported.

Production capacityOperational controls are supported by documented and consistently followed finished-product inspection instructions, written supplier-service assessment procedures with records, and corrective/preventive-action procedures. The supplier also reports inventory capability, but explicitly lacks a valid contract between the factory and related subcontractors, which is a stated manufacturing-governance deficiency.

Customization capabilityThe supplier explicitly supports minor customization, customization from samples, customization from designs, full customization, and flexible customization. This is direct evidence of broad customization capability.

Product Q&A

Q:What rock formations are suitable for the concave face design?

The concave face is designed for all-around applications in medium hard and homogeneous rock formations, providing good hole deviation control and flushing capacity.

Q:What materials are used for the drill bits?

The bits are made from first-class special alloy steel with exceptional strength and heat resistance, combined with superior tungsten carbides sourced from China and Europe.

Q:Is customization available for these drill bits?

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

Q:What are the available bit face shapes?

We provide Drop Center, Concave, Convex, and Flat face shapes, each tailored for specific rock hardness and drilling conditions.

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.