What is the warranty period for the drill bits?

The warranty period is 3 months.

How is after-sales service provided?

Our sales team responds to questions within 24 hours (excluding holidays), and technical support is available at any time.

What certifications does the product have?

The product holds CE and RoHS certifications.

High-Performance 3-7/8" Tri Cone Milled Tooth Drill Bits

Name: High-Performance 3-7/8" Tri Cone Milled Tooth Drill Bits
Brand: Changsha DTH Drill Construction Machinery Co., Ltd.
SKU: 2100734485

Hunan, ChinaChangsha DTH Drill Construction Machinery Co., Ltd.

US$150.00-990.00

1 Piece

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

3months

Model NO.

tricone bit

Certification

CE, RoHS

Standard

AISI

Surface Treatment

Galvanized

Manufacturing Process

Forging

Material

Alloy Steel

Size

3 3/4"~26"

Wob

0.35~1.05kn/mm

Rpm

80~40r/Min

Weight

21kg

Applicable Industries

Energy & Mining

Condition

New

Machine Type

Drilling Tool

Product Name

3-7/8" Tri Cone Insets Milled Tooth Bits 98.4mm Tc

Transport Package

Wooden Box

Specification

540X450X500mm

Trademark

CSDRILL

Origin

China

HS Code

8207

Production Capacity

500000

Key features

Wide Size Range: Available in sizes from 3 3/4' to 26' to fit various drilling needs.

Comprehensive IADC Codes: Covers almost all IADC codes including 116, 437, 517, 637, and more.

Customizable Specifications: Customized Size, WOB, RPM, and Weight options available for specific projects.

Durable Bearing System: Equipped with rubber sealed journal bearings for enhanced durability.

Versatile Application: Suitable for geological prospecting, oil/gas development, and water wells.

High Penetration Rate: Optimized cutter design ensures fast drilling rates in various formations.

Strict Quality Control: Experienced QC team performs strict inspection before shipping.

Fast Delivery Option: Stock items available for dispatch within 2-3 days upon request.

Company profile

In-stock CapacityFast DeliveryR&D CapabilitiesProduct Certification

Changsha DTH Drill Construction Machinery Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2015-07-10Nearest Port: Shenzhen, ShanghaiAverage Response Time: ≤4.64hTerms of Payment: T/TInternational Commercial Terms(Incoterms): FOB, EXW, CFR

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Changsha, with a stated business scope covering mechanical equipment, hardware, electronic products, instruments, metal products, and general equipment manufacturing. It reports export experience of three years, exports accounting for 41%–50% of total sales, overseas agents or branches, and maintenance and repair services in countries including Peru, Brazil, and Argentina. Reported production capacities cover drilling rigs, reverse-circulation drilling tools, DTH hammers, drill bits, and drill pipes, while customization from samples and designs is available. The supplier holds ISO9001:2015 and CE certifications. Service procedures exist but lack written records, and no overseas warehouse or showroom is available. Financial information is indicated for 2021–2023, but no substantive financial performance details are provided. Innovation evidence is mixed: ODM and OEM services are available, but no new products were reported in the past year and no SDK is...

Supplier typeThe supplier is explicitly classified as a trading company, with its business scope covering sales of mechanical equipment, hardware, electronic products, instruments, leather products, metal products, and related equipment manufacturing. Its associated-company industry is listed as wholesale and retail, reinforcing its trading-oriented profile.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications relevant to quality management and product conformity.

After-Sales capabilityThe supplier reports maintenance and repair services through overseas agents or branches in Peru, Brazil, Argentina, and other countries. However, its service assessment, corrective-action, and complaint-handling procedures have no written records, and it has no overseas warehouse or showroom, so the evidence supports service availability but not fully documented service controls.

Production capacityStated annual capacities include 500 drilling rigs, 8,000 reverse-circulation drilling tools, 10,000 DTH hammers, 500,000 drill bits, and 100,000 drill pipes, with inventory capability also reported. However, the supplier is classified as a trading company and its valid manufacturing-contract status is unknown, so the scale of directly controlled production is not fully established.

Customization capabilityThe supplier explicitly offers customization from samples and designs, as well as ODM services. This indicates capability to support customer-specific product requirements, although no examples or scope limitations are provided.

Product Q&A

Q:What are the available sizes for these drill bits?

The drill bits are available in sizes ranging from 3 3/4' to 26'.

Q:What IADC codes are covered by this product?

The product covers almost all IADC codes, including 116, 117, 126, 127, 136, 137, 216, 217, 317, 337 for steel teeth, and 417, 437, 447, 517, 527, 537, 547, 617, 627, 637, 647, 737, 837 for TCI series.

Q:Can the specifications be customized?

Yes, customization is available for Size, WOB, RPM, Weight, and other parameters to suit specific application requirements.

Q:What is the delivery time for orders?

Normally it takes 10-25 days for production based on order quantity. If stock is available for the requested model and size, delivery can be completed in 2-3 days.

Q:What payment methods are accepted?

We accept T/T (Telegraphic Transfer), Western Union, or L/C at sight.