What is the expected lifespan of the drill bits?

They can typically drill more than 30 holes, although the exact life depends on the type of material being drilled.

What certifications does the product have?

The product meets Standard: SGS and GB certifications.

Tile Hole Cutter Diamond Core Drill Bits for Porcelain Ceramic

Name: Tile Hole Cutter Diamond Core Drill Bits for Porcelain Ceramic
Brand: Johnson Tools Manufactory Co., Ltd.
SKU: 1901197175

Jiangsu, ChinaJohnson Tools Manufactory Co., Ltd.

US$6.00

20-49 Pieces

US$5.50

50+ Pieces

Product profile

Customized

Standard

SGS,GB

Length

62mm

Type

Core Drill Bit

Material

Diamond

Usage

Masonry Drilling, Ceramic, Porcelain, Stone.

Diameter

30mm

Total Length

62mm

Segment Height

15mm

Thread

M14 or 5/8"-11

Technology

Vacuum Brazed

Application

Wet Drilling or Dry Drilling

Delivery Date

15-20days

MOQ

20PCS

Transport Package

Aluminum Box Packaging

Specification

30MM

Trademark

Johnson Tools

Origin

China

Production Capacity

10000PCS/Month

Key features

Vacuum Brazed Technology: Superior to electroplating, offering longer lifespan and durability.

High Precision Drilling: Aggressive cutting for ceramic and porcelain with smooth edges and minimal chipping.

Full Customization Available: Customizable from samples, designs, or full customization options.

Versatile Application: Suitable for wet or dry drilling on porcelain, ceramic, tile, and stone.

Durable Performance: Capable of drilling over 30 holes depending on material type.

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: ≤4.33h

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.