What are the payment terms for orders?

For orders under $1000, full payment is required in advance. For orders over $1000, a 30% T/T prepayment is needed with the balance due before shipment.

Can I get free samples to test the quality?

Yes, we offer complimentary samples; you only need to cover the freight costs.

What certifications does the product have?

The product is manufactured under ISO9001:2015 certification standards.

Durable Pilot Bit Ring Bit for Casing Tube Od 168mm DHD350 Hammer

Name: Durable Pilot Bit Ring Bit for Casing Tube Od 168mm DHD350 Hammer
Brand: Changsha Tianhe Drilling Tools and Machinery Co., Ltd.
SKU: 2074958182

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

US$50.00-200.00

1 pieces

Product profile

Customization

Available

After-sales Service

Available

Warranty

6 Months

Certification

ISO9001:2015

Standard

AISI

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Alloy Steel

Casing Tube Od

114mm, 140mm, 168mm, 219mm, 273mm

Composed

Pilot Bit Ring Bit

Matched Hammer

DHD3.5, DHD340, DHD350, DHD360, DHD380

Processing Type

Forging

Machine Type

Drilling Tool

Use

Rock Drilling

Color

Glod Other Ascustomer Need

Matched Drill Rig

DTH Drill Rig

Video Outgoing-Inspection

Provided

Application

Water Well Drilling, Micro Piling, Anchoring

Transport Package

in Wooden Case

Specification

114 ring bit

Trademark

Teamwhole

Origin

Hunan, China

HS Code

820719

Production Capacity

5000 Piece/Pieces Per Month

Key features

Customizable OD Sizes: Available in 114mm, 140mm, 168mm, 219mm, 273mm, and 325mm casing tube ODs.

High-Strength Alloy Steel: Forged from premium alloy steel with spray-paint surface treatment for durability.

Versatile Application: Ideal for water well drilling, anchoring, micro piling, and geothermal engineering.

ISO9001 Certified: Manufactured under ISO9001:2015 certification ensuring consistent quality standards.

Wide Hammer Compatibility: Matches DHD3.5, DHD340, DHD350, DHD360, DHD380, and other DTH hammers.

Rapid Delivery: In-stock items delivered within 5-10 days; out-of-stock within 15-20 days.

Free Sample Policy: Complimentary samples provided; customer only covers freight costs.

6-Month Warranty: Includes 6-month warranty with available after-sales service support.

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: ≤11.05h

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.