What is the lead time for delivery?

The average lead time is within 15 workdays, both during peak season and off-season.

What payment terms are accepted?

Accepted payment terms include LC, T/T, Western Union, D/P, and PayPal.

What is the warranty or service guarantee?

We guarantee safety and quality, aiming to reduce costs and speed up drilling. We provide 24-hour service support.

12 1/4'' Three Wings Step Drag Bit Rock Drilling Tools Bit

Name: 12 1/4'' Three Wings Step Drag Bit Rock Drilling Tools Bit
Brand: Hejian Hengji Bit Manufacture Co., Ltd.
SKU: 1973985342

Hebei, ChinaHejian Hengji Bit Manufacture Co., Ltd.

US$100.00-500.00

1 Piece

Product profile

Customization

Available

Customized

Length

Taper-length

Model NO.

311

Type

Center Drill Bit

Material

Alloy Steel, Tungsten Carbide

Usage

Well Drilling

Certification

ISO

Model Number

Steel Body & Matrix Body

Bearing Type

Sealed Bearing and Non-Sealed Bearing

Suitable Formation

Soft, Medium Soft, Hard, Medium Hard, Very Hard

Color

Blue or Red

Transport Package

Wooden Case

Specification

according requirement

Trademark

Origin

China

HS Code

8207191

Production Capacity

500

Key features

Durable Tungsten Carbide Construction: One-piece alloy steel body cast with tungsten carbide cutting tips and gauge sides for extended service life.

High Efficiency 3-Wing Design: Three wings and three flushing holes ensure faster, more aggressive drilling compared to 4-wing bits.

Wide Customization Options: Customizable certification, model number, bearing type, suitable formation, and color (Blue or Red).

Versatile Application Range: Ideal for soft to medium formations like clay, loam, and silt; suitable for mining, exploration, and water wells.

ISO Certified Quality: Manufactured with advanced CNC machines and R&D team, backed by SGS and ISO certification.

Global Service Experience: Over 15 years of experience serving 40+ countries in Oil & Gas, HDD, Geothermal, and Environmental sectors.

Flexible Diameter Options: Available in diameters from 2 to 17 1/2 inches (50.8 to 444.5mm) to fit various drilling requirements.

Competitive Pricing & Delivery: On-time delivery within 15 workdays regardless of season, ensuring clients stay ahead of schedule and budget.

Company profile

Years of Export ExperienceImporters and ExportersHigh Repeat Buyers ChoiceSelf-branded

Hejian Hengji Bit Manufacture Co., Ltd.

Hebei, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤2.24hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW, DDP

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory/combined manufacturing entity in Hejian, China, with five production lines, 50 quality control staff, and ISO 9000/ISO 9001 management-system certifications. It demonstrates broad customization and R&D capabilities, including recent new products and ODM services, and reports OEM service for well-known brands. Quality controls include 100% finished-product inspection, raw-material traceability, complaint-handling procedures, and 10 stated quality assurance/control inspectors in one record, although another record states 50 quality control staff. After-sales offerings include installation, training, repair, maintenance, and debugging, but no overseas warehouses, showrooms, agents/branches, or prior offline trade-show participation are reported. Service procedures and records exist, while corrective/preventive-action procedures are not documented. Financial credibility cannot be determined from the provided information because the financial entries only identify...

Supplier typeThe supplier is described as a combined entity and factory, located in Hejian, Cangzhou, China, with manufacturing identified as the industry of associated companies. This supports classification as a direct manufacturing supplier rather than an offshore company.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 management-system certifications. These certifications provide explicit evidence of formal quality-management certification.

After-Sales capabilityThe supplier lists installation, training, repair, maintenance, and debugging services, and has a clear customer-complaint procedure with followed records. However, it reports no overseas warehouse, showroom, agent/branch, or overseas-service country, indicating that the documented service scope is not supported by an overseas physical network.

R&D capabilityThe supplier reports new products within the past year, ODM services, 50 years of total R&D engineer experience, and broad design customization. It does not have an available SDK, but the stated R&D and ODM evidence demonstrates product-development capability.

Production capacityThe supplier operates five production lines, reports an average off-season lead time within 15 workdays and peak-season timing within 15 workdays to one month, and identifies a machining center as a combined facility. It also reports 100% finished-product inspection and 10 qualified service-capability suppliers, supporting established production and service operations.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization in both R&D and design-service records. This is direct evidence of a broad customization range.

Client casesThe supplier explicitly reports providing OEM services for well-known brands, which is evidence of experience serving recognized-brand customers. No specific brand names, project details, volumes, or performance outcomes are provided, so the depth of these cases cannot be evaluated.

Product Q&A

Q:What is the recommended rotary table speed?

The rotary table speed should be between 60 and 80 rpm with light weight on bit (WOB).

Q:What types of geological formations are suitable?

Primarily designed for soft to medium formations such as Clay, Loam, Silt, and moist soils. Also suitable for Mining, Exploration, and Water Well drilling.

Q:What are the available diameter options?

Diameter ranges from 2 to 17 1/2 inches (50.8 to 444.5mm), with thread options available.

Q:How does the 3-wing design compare to 4-wing bits?

3-wing step drag bits drill faster and are more aggressive than 4-wing bits, though they may be shorter lasting. They produce larger cuttings force than chevron style bits.

Q:What certifications does the product have?

The product is SGS and ISO certified, manufactured with international standards and advanced technology.