What are the crown hardness standards?

The hardness standards include K3, K5, K7, K9, K11, K13, K18, and K20.

What models are available?

We offer AQ, BQ, NQ, HQ, PQ series, as well as T2 and T6 custom models for various drilling needs.

High Quality Diamond Core Drill Bit for Concrete Well Drilling

Name: High Quality Diamond Core Drill Bit for Concrete Well Drilling
Brand: Shijiazhuang Jimai Machinery Equipment Technology Co., Ltd.
SKU: 1968148131

Hebei, ChinaShijiazhuang Jimai Machinery Equipment Technology Co., Ltd.

US$50.50

1 Piece

US$50.00

2+ Pieces

Product profile

Customization

Available

Customized

Standard

N/M

Model NO.

all

Length

Jobber-length

Type

Core Drill Bit

Material

Diamond

Usage

Well Drilling, Oil Drilling

Model

Aq Bq Nq Hq Pq

HS

820719100

Circulation Type

Mud Fluid

Machine Type

Drilling Tools

Transport Package

Standard Export Packing

Specification

standard

Trademark

Origin

Hebei China

HS Code

820719100

Production Capacity

2000 Sets / Month

Key features

Impregnated Diamond Matrix: High quality synthetic diamonds distributed in the matrix for mineral exploration.

Customizable Crown Hardness: Crown hardness standards include K3, K5, K7, K9, K11, K13, K18, K20.

Wide Model Range: Available in AQ, BQ, NQ, HQ, PQ series and T2/T6 custom models.

Professional Manufacturer: 20+ years experience in drilling rigs and tools with global service.

Flexible Customization: Supports customization from samples, designs, and full customization.

Fast Delivery: Delivery within 7 working days after payment receipt.

12-Month Warranty: Free replacement parts for defective accessories within 12 months.

Competitive Pricing: High quality products with competitive prices and fast shipment.

Company profile

Importers and ExportersFast DeliveryR&D Capabilities

Shijiazhuang Jimai Machinery Equipment Technology Co., Ltd.

Hebei, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2024-01-01Nearest Port: TianjinAverage Response Time: ≤2.57h

AI-Powered supplier vetting

SummaryShijiazhuang Jimai Machinery Equipment Technology Co., Ltd. is identified as a trading company and limited company offering water well drilling rigs and mud pumps. It reports OEM service for well-known brands, broad customization options, and substantial export activity, with self-operated import and export rights stated. The supplier describes independent development and production of water well drilling rigs and accumulated maintenance and after-sales experience. However, it has only three employees, no inventory, overseas warehouse, overseas showroom, overseas agents or branches, and no recorded participation in offline trade shows. The provided information confirms financial records for 2021–2023 but does not disclose financial results. An SGS audit is listed, although the audit result is recorded as 0 and the report validity shown ended on 2025-05-07. No specific certifications or customer cases are provided.

Supplier typeThe supplier is explicitly classified as a trading company and a limited company. Its listed offerings are water well drilling rigs and mud pumps, while its business scope includes machinery sales, construction and mining machinery, import/export, and technology services.

After-Sales capabilityThe supplier states that it has accumulated maintenance technology and after-sales handling experience through extensive user contact and usage data. It lists equipment installation as an overseas service offering, but has no overseas agents or branches and serves zero listed countries, indicating limited documented international service coverage.

R&D capabilityThe supplier states that it independently develops and produces a new generation of water well drilling rigs and provides technology development and promotion services. However, it reports no available SDK, and no specific patents, R&D personnel, facilities, or measurable innovation outcomes are provided.

Customization capabilityThe supplier explicitly lists customization from samples, customization from designs, full customization, minor customization, and flexible customization. This directly indicates broad stated customization coverage.