What is the lead time for production?

The lead time is within 15 workdays during the off-season and one month during the peak season.

What is the warranty policy?

We provide strict quality warranty and compensation rules to ensure reliable performance and long service life.

What is the delivery port?

The nearest port for shipment is Shanghai Port.

Numa Drill Bits for Water Well and Mining Drilling

Name: Numa Drill Bits for Water Well and Mining Drilling
Brand: Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
SKU: 2021769482

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

Customizable Bit Face: Options include Spherical, Concave, Flat, and Drop Center for various rock formations.

Premium Alloy Steel: Made from special alloy steel with exceptional strength, heat resistance, and durability.

High Quality Carbide: Features superior tungsten carbides from China or Europe for hardness and wear resistance.

Wide Size Range: Available in diameters from 90mm to 1000mm to suit diverse drilling requirements.

Long Service Life: Reliable quality ensures long service life with rare abnormal breakage during operation.

High Penetration Rate: Designed for efficient drilling with good flushing effect and high drilling rate.

Flexible Customization: Offers full customization, minor customization, and customization from samples or designs.

Strict Quality Control: 100% inspection including visual and function checks with strict warranty rules.

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 bit face shapes are available?

We offer Spherical, Concave, Flat, and Drop Center bit faces to suit different rock formations and drilling conditions.

Q:What materials are used for the drill bits?

The bits are made from first-class special alloy steel and premium tungsten carbides sourced from China or Europe.

Q:Can the drill bits be customized?

Yes, we provide full customization, minor customization, and customization from samples or designs. Painting colors like Yellow or Blue can also be customized.

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.

Q:What are the payment terms?

We accept LC, T/T, PayPal, Western Union, Small-amount payment, and D/P.