What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 10 pieces.

How are the drill bits packaged?

Each bit is packed in a PVC box, then placed in cartons (6/10/20pcs per carton), and finally sealed in solid wood crates for shipping.

Nq H7 Impregnated Core Drill Bits

Name: Nq H7 Impregnated Core Drill Bits
Brand: Hubei EZdrill Tools Co., Ltd.
SKU: 2257164505

Hubei, ChinaHubei EZdrill Tools Co., Ltd.

US$70.00

1-49 Pieces

US$65.00

50-99 Pieces

US$60.00

100+ Pieces

Product specifications

NQ

Sample price:US$70.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

Internationally Accepted

Model NO.

Length

Type

Core Drill Bit

Material

Diamond

Usage

Core Drilling

Crown Height

15mm Customization Supported

Water Outlets

Customization Supported

HRC

-10°-50°

Series

H3/H5/H7/H9/H11/H13

Transport Package

Wooden Box/Paper Box/Protective Box

Specification

Impregnated dimond bits

Trademark

EZdrill

Origin

Huanggang City, Hubei Province, China

HS Code

8207191000

Production Capacity

20000

Key features

15mm Standard Crown Height: Provides 25-30% more drilling footage than industry average, reducing replacement frequency.

Premium Diamond Material: Uses synthetic diamond and metal powder with vacuum sintering for significantly improved sharpness and lifespan.

Optimized Water Outlet Design: Evenly spaced outlets with curved channels reduce resistance, improve drainage, and prevent overheating.

Full Strata Coverage: 6 matrix series (H3-H13) cover soft to ultra-hard rocks, eliminating the need to switch bits for mixed strata.

Customizable Dimensions: Crown height, water outlets, and HRC angle are customizable to meet specific drilling requirements.

Wide Size Compatibility: Available in Wireline, T2, TT, T6, B, MLC, LTK, WF, TW, WT, WG, WM, and Chinese standard series.

Fast Delivery Options: 3-7 days for standard products; 20-25 days for custom orders; urgent orders shipped within 3 days.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced Team

Hubei EZdrill Tools Co., Ltd.

Hubei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Wuhan Port, Shanghai Port, Shenzhen PortAverage Response Time: ≤1.85h

AI-Powered supplier vetting

SummaryThe supplier manufactures and sells metal tools, non-metallic mineral products, non-ferrous metal alloys, construction machinery, geological exploration equipment, and specialized oil-drilling equipment. It reports 100% finished-product inspection, two quality inspectors, a stated annual core drill bit productivity of 240,000 pieces, and production equipment including laser cutting, milling, NC lathe, sawing, boring, heat press, and cold press machines. Customization is offered from samples, designs, and full specifications. The supplier holds ISO9001:2015 and CE certifications and reports regular fire drills. Peak- and off-season lead times are each within 15 workdays. However, it reports no valid manufacturing-capacity contract with related subcontractors, no inventory, no overseas warehouse, and no overseas showroom. OEM service for known brands is reported, but no customer names or specific cases are provided. Financial records contain stated numeric values but no currency or scale, so financial...

Supplier typeThe supplier is a manufacturer and seller of metal tools, non-metallic mineral products, non-ferrous metal alloys, construction machinery, geological exploration equipment, and specialized equipment for petroleum drilling and production. The stated scope supports classification as an industrial equipment and tooling manufacturer rather than a general trading supplier.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification in multiple slices. It also reports conducting regular fire drills during the past year, providing additional operational-safety evidence, although no separate fire-safety certification is stated.

Production capacityProduction evidence includes 100% finished-product inspection, two quality inspectors, listed machining and processing equipment, annual core drill bit productivity of 240,000 pieces, and lead times within 15 workdays in both seasons. The supplier also reports no valid manufacturing-capacity contract with related subcontractors and no inventory capability, which limits evidence regarding capacity resilience and fulfillment backup.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization, and reports OEM service for well-known brands. These statements directly support a broad customization offering, although no project examples or technical customization limits are given.

Product Q&A

Q:What is the standard crown height and its benefit?

The standard crown height is 15mm, which is larger than the industry average of 10-12mm. This design delivers 25-30% more drilling footage and offers superior durability.

Q:How does the water outlet design improve performance?

The evenly spaced water outlets feature curved flow channels that reduce water resistance. This improves drainage efficiency to effectively flush cuttings, cool the matrix, and significantly reduce the risk of overheating.

Q:What are the lead times for standard and custom orders?

Standard orders take 3-7 working days. Customized products take 20-25 working days. Urgent orders get priority production and can be shipped within 3 working days.

Q:Is there a sample policy for testing?

Yes, 1-3 pieces are available for testing. The sample fee is 100% refunded if you place a subsequent order with a quantity of 50 pieces or more.

Q:What payment terms are accepted?

We accept T/T, L/C, D/P, PayPal, Western Union, and small-amount payments.