Is there a discount for large orders?

Yes, a 5% discount is offered for orders greater than 100 pieces.

What is the delivery time?

Delivery time is around 7 to 20 days, with peak and off-peak seasons taking about one month.

12mm Tile Core Bits Vacuum Brazed Diamond Core Drill Dit Set Carbide Drill Bits for Porcelain Tile

Name: Best Selling Quality M14 6/8/10/12mm Tile Core Bits Vacuum Brazed Diamond Core Drill Dit Set Carbide Drill Bits for Porcelain Tile
Brand: Johnson Tools Manufactory Co., Ltd.
SKU: 2030139245

Jiangsu, ChinaJohnson Tools Manufactory Co., Ltd.

US$13.40

10-199 Pieces

US$13.10

200-499 Pieces

US$12.80

500+ Pieces

Sample price:US$13.40/piece.Request sample

Product profile

Customized

Standard

SGS

Length

62mm

Model NO.

Type

Core Drill Bit

Material

Diamond

Usage

Ceramic, Tile, Porcelain

Sample

Available

MOQ

Connector Type

M14

Segment Type

Crown Segment

Transport Package

Plastic Box or Carton

Specification

6-12mm

Trademark

Johnsontool

Origin

China

HS Code

82075010

Production Capacity

300000PCS Per Month

Key features

Vacuum Brazed Technology: Superior to electroplating, diamond particles firmly attached for longer life and aggressive drilling.

Multi-Material Compatibility: Ideal for drilling ceramic, porcelain, tiles, granite, marble, and stone with high precision.

Smooth Edge Drilling: Leaves smooth edges with minimal chipping, ensuring high-quality results on delicate surfaces.

High Durability: Each bit can last dozens of holes drilling marble and similar stones, exceeding 30 holes typically.

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

Volume Discount: Orders greater than 100 pieces per order receive a 5% price concession.

Sample Testing Available: Accepts sample orders for testing before bulk purchase to ensure quality and fit.

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.