What materials can this drill bit be used on?

It is designed for drilling concrete, brick, block, pavers, and asphalt.

What is the thread type of the core bits?

The core bits come with thread 1-1/4" UNC or 1/2" GAS.

Od50mm Diamond Drill Concrete Core Bit for Construction

Name: Od50mm Diamond Drill Concrete Core Bit for Construction
Brand: Johnson Tools Manufactory Co., Ltd.
SKU: 675285095

Jiangsu, ChinaJohnson Tools Manufactory Co., Ltd.

US$17.00-60.00

50 Pieces

Product profile

Customized

Non-Customized

Standard

SGS

Length

76-250mm

Model NO.

15.3.2

Type

Core Drill

Material

Diamond

Usage

Masonry Drilling

Classification

Hand Drill

Drill Shape

Round

Applications

Building and Industrial

Condition

New

Drill Brand

OEM

Delivery Time

Around 35days

Sample

Available

OEM

Available

Company Type

Direct Manufacturer and Trading Company

Transport Package

Carton

Specification

Trademark

Johnsontool

Origin

China

HS Code

8207501000

Production Capacity

1000PCS/Month

Key features

SGS and MPA Certified: Products certified by SGS and MPA with over 20 years of manufacturing experience.

Wet and Dry Application: Versatile design suitable for both wet and dry drilling on concrete, brick, and asphalt.

Laser Welded Technology: Advanced laser welding processing ensures high durability and fast drilling speed.

Customizable Sizes: Diameter and length can be customized to meet specific project requirements.

OEM and ODM Services: Full customization available including samples, designs, and minor adjustments.

Fast Delivery Options: Shipment available in 15-30 days depending on stock availability of steel bodies.

Global Export Experience: Exporting to over 70 countries with a track record of 17 years in international trade.

100% Quality Inspection: Strict visual and functional inspection on all finished products before shipping.

Company profile

Years of Export ExperiencePatents AwardedFast DeliveryOEM Services

Johnson Tools Manufactory Co., Ltd.

Jiangsu, 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: 17 Years CertifiedNearest Port: Shanghai Port, Ningbo, QingdaoAverage Response Time: ≤4.75h

AI-Powered supplier vetting

SummaryThe supplier provides OEM and ODM services and supports extensive customization, including sample-, design-, full-, minor-, and flexible customization. It has 17 years of export experience, self-managed import/export rights, 90% export sales, and accepts multiple trade and payment terms. Production is conducted on one line, supported by 11–20 quality-control staff and stated advanced equipment and checking systems. However, no management-system certifications, SDK, new products in the past year, overseas service facilities, or offline trade-show participation are reported. Service procedures and complaint handling lack written records, and production batches are not continuously reconciled. Financial and cash-flow evidence is limited to year labels, so financial credibility cannot be conclusively assessed.

Supplier typeThe supplier is an OEM/ODM manufacturer with its own factory location, one production line, stated production output, advanced equipment, and a technical workforce. It also provides export services directly through self-managed import/export rights, indicating a manufacturing-oriented supplier rather than a pure trading intermediary.

CertificationsThe supplier’s certification of management systems is explicitly listed as NIL. This is a stated absence of certification evidence and represents a deficiency for this field.

After-Sales capabilityThe supplier has a complaint-handling procedure, but no written records, and it lacks written service-assessment and corrective/preventive-action procedures or records. It also reports no overseas warehouses, showrooms, agents, branches, or offline trade-show participation, limiting documented overseas service support.

R&D capabilityThe supplier provides ODM and broad design customization, but reports no available SDK and no new products during the past year. These explicit limitations outweigh the design-service evidence when assessing demonstrated recent innovation capability.

Production capacityThe supplier reports one production line, 11–20 quality-control staff, advanced production and checking equipment, and flexible export fulfillment with one-month lead times in both peak and off-season. However, it does not continuously reconcile quantities for each batch or mass production, so production controls are not fully documented.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also offers ODM services. This is strong direct evidence of broad customization capability.

Product Q&A

Q:How to place an order?

Required Products Details: Tell us what is your demand? Which kind of products, size, specification, cutting or grinding or drilling materials? HP of machine? Quantity? Nearest airport and seaport? Then we will give you best offer. Performa Invoice: Offer satisfied, and then confirms the delivery time, payment term, logo, quantity, etc. According to this information, we will do Performa Invoice. Customers do the payment. Production Process: Arrange production, based on the contract and PI descri

Q:What are the payment terms?

We accept T/T, Irrevocable L/C at sight, PayPal, West Union, Credit Card, LC, D/P, and Western Union.

Q:What is the delivery time?

If we have steel body in stock, shipment is around 15 days. Otherwise, it usually takes 20-30 days.

Q:Can the product size be customized?

Yes, size could be customized. We offer full customization, minor customization, and flexible customization from samples or designs.

Q:What is the minimum order quantity?

The minimum order quantity is 100 Pcs.