Where is your company located?

We are located in Changsha city, Hunan province, China, about 1.5 hours by car from Huanghua international airport.

Which port do you ship from?

We usually ship containers from Shanghai port. Guangzhou port is also available.

What is the warranty period for your products?

Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We provide quick responses to complaints and suggestions.

Down The Hole Button Bits Retract Thread Button Drill Bit

Name: Down The Hole Button Bits Retract Thread Button Drill Bit
Brand: Changsha Chaojingang Machinery Manufacturing Co., Ltd.
SKU: 1977147872

Hunan, ChinaChangsha Chaojingang Machinery Manufacturing Co., Ltd.

Negotiable

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Certification

ISO 9001:2000, ISO 9001:2008

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Alloy Steel

Connection Thread

API 3 1/2" Reg

Hole Range

Dia 155 - 190 mm

Working Pressure

1.0 - 2.5MPa

Compatible Bit Shank

Mission60 / Cm60A

Transport Package

Ply-Wooden Cases for Exporting

Specification

2 inch to 12 inch

Trademark

Super Diamond

Origin

China

HS Code

8207199000

Key features

Premium Material & Durability: Made of high-quality alloy steel with premium hardened procedures for long service life.

Full Customization Support: Accepts OEM/ODM, custom threads, hole ranges, and compatible bit shanks like Mission60.

Stable Production Lead Time: Full production chain ensures stable and prompt delivery, typically within one month.

ISO Certified Quality: Manufactured under ISO 9001:2000/2008 standards with strict 100% finished product inspection.

Global Export Experience: Over 17 years of experience exporting to South America, Europe, Australia, and Africa.

Low Minimum Order Quantity: Flexible MOQ starting from 1 piece or 1 complete set to accommodate various needs.

Competitive Pricing: Unbeatable prices combined with premium quality and professional service.

Comprehensive Technical Support: Experienced senior technicians and engineers provide quick and efficient service.

Company profile

Changsha Chaojingang Machinery Manufacturing Co., Ltd.

Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shanghai Port; Shenzhen PortAverage Response Time: ≤3.48h

AI-Powered supplier vetting

SummaryThe supplier demonstrates product R&D, ODM, SDK availability, and broad customization capabilities, including customization from samples, designs, full customization, and minor customization. It reports eight years of export experience, export activity representing 51%–70% of total sales, self-operated import and export rights, and participation in an offline international construction machinery exhibition. Service quotations support FOB, CIF, CFR, and EXW, with a stated one-month average lead time in both peak and off-seasons. However, the supplier reports no overseas warehouse, showroom, agents, or branches, and no overseas service countries. ISO9001:2015 certification and recent fire drills are stated, but no factory environmental impact assessment report is available. Financial records provided for recent years show zero values for revenue, profit, margins, costs, and current ratios, preventing a positive assessment of financial credibility. Evidence of production scale and named customer cases is...

Supplier typeThe supplier appears to be a manufacturing-oriented rock-drilling equipment provider with R&D, ODM, SDK, export, and customization capabilities. Its products are described for earthwork, mining, water-well, construction, geothermal, and municipal engineering applications, while it does not provide OEM services for popular brands.

CertificationsThe supplier reports holding an ISO9001:2015 certificate and conducting regular fire drills during the past year. However, it also states that the factory has no environmental impact assessment report, so the evidence supports quality-system certification but not comprehensive environmental documentation.

Financial creditThe supplied financial records for the stated recent years report zero operating revenue, operating costs, gross profit, operating profit, gross margins, and current ratios. These values do not provide positive evidence of financial strength and materially limit the ability to verify financial credibility.

R&D capabilityThe supplier reports that it had new products during the past year, provides ODM services, and has an available SDK. These are explicit indicators of product development and technical integration capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization. It also reports R&D capability and ODM service availability, supporting a broad customization offering.