What machine is recommended for this drill bit?

An angle grinder is recommended; if using an electric drill, an adapter is required.

What is the minimum order quantity?

The minimum order quantity is 100 pieces.

12mm Diamond Vacuum Brazed Hole Saws Core Drill Bits

Name: 12mm Diamond Vacuum Brazed Hole Saws Core Drill Bits
Brand: Johnson Tools Manufactory Co., Ltd.
SKU: 1938096235

Jiangsu, ChinaJohnson Tools Manufactory Co., Ltd.

US$2.80

5-199 Pieces

US$2.70

200-999 Pieces

US$2.66

1,000+ Pieces

Sample price:US$3.00/piece.Request sample

Product profile

Product Name

Diamond Vacuum Brazed Hole Saws Core Drill Bits

Size

12mm

Technology

Vacuum Brazed

Model NO.

OD12HS

Working Length

60mm

Thread

M14

Drilling Material

Porcelain Tile Granite Marble Stone Brick

Surface

Cooling Wax

Transport Package

Plastic or White Box

Specification

6mm

Trademark

Johnson Tools

Origin

Jiangsu China

Key features

Vacuum Brazed Technology: Ensures strong diamond bonding for fast drilling and long life in dry conditions.

Dry Drilling Capability: Designed for water-free drilling on porcelain, ceramic, tile, and stone.

Wide Size Range: Outer diameters available from 5mm to 180mm to suit various drilling needs.

Fast Drilling Performance: Optimized design allows for rapid drilling with extended tool life.

US Warehouse Shipping: Fast delivery from American warehouse within 1-6 business days with no fees.

OEM and ODM Services: Full customization available from samples, designs, or flexible minor changes.

High Inspection Standard: 100% visual and function inspection ensures quality for every finished product.

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: ≤3.82h

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.