Does the drill bit have anti-rust protection?

Yes, it features SGS-approved anti-rust oil treatment and shot-peened surface, compliant with the Reach standard.

What is the warranty or quality guarantee?

The product is PGM certificated, and the factory holds ISO9001:2015 certification with strict QA/QC inspections.

Pgm German Quality Tct Natural Stone Drill Bit Tri-Flat Shank for Various Stone Granite Marble Drilling

Name: Pgm German Quality Tct Natural Stone Drill Bit Tri-Flat Shank for Various Stone Granite Marble Drilling
Brand: ZHENJIANG HTT TOOL CO., LTD.
SKU: 1985410125

Jiangsu, ChinaZHENJIANG HTT TOOL CO., LTD.

US$0.212-2.317

1,000 Pieces

Sample price:US$0.52/piece.Request sample

Product profile

Customization

Available

Customized

Standard

DIN

Model NO.

3750

Length

70mm to 250mm

Type

Twist Drill Bit

Material

Tungsten Carbide

Usage

Masonry Drilling

Carbide Type

Ceratizit Bc10

Steel Shaft Type

40cr

Flute Type

Shank Type

Tri-Flat

Welding Type

AVS. (Automatic Vacuum Soldering)

Surface Treatment

Shot-Peened

Certificate

Pgm

Transport Package

Paper Hanger, PVC Bag, Skin Pack, Blister Pack

Specification

3mm to 16mm diameter

Trademark

OEM, HTT

Origin

China

HS Code

8207509000

Production Capacity

2400000

Key features

Premium Carbide Material: Ceratizit carbide tips from Luxemburg ensure high durability and wear resistance.

Advanced W5 Flute Design: Maximizes dust rejection for faster drilling speed and more comfortable operation.

Tri-Flat Shank Design: Prevents chuck slipping and guarantees optimal torque during stone drilling.

Automatic Vacuum Soldering: AVS welding ensures carbide symmetry and rotary run-out straightness.

SGS-Approved Anti-Rust: Shot-peened surface with SGS-approved oil treatment compliant with Reach standard.

Low Vibration Technology: Designed for lower vibration to enable easy, long-duration drilling jobs.

Full Customization Options: Supports customization from designs, samples, and special size requests.

ISO9001 Certified Manufacturer: Produced by a certified factory with 12 years of export experience.

Company profile

High Repeat Buyers ChoiceYears of Export ExperiencePatents AwardedManagement Certification

ZHENJIANG HTT TOOL CO., LTD.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤8.00h

AI-Powered supplier vetting

SummaryHTT is identified as a manufacturing factory with self-operated import/export rights and substantial export activity, with exports representing 90% of total sales. It holds an ISO9001:2015 management-system certificate and reports documented finished-product inspection instructions and supplier-management procedures. The supplier supports customization from designs and samples, full customization, and ODM services, and reports new-product development, one R&D engineer, AutoCAD capability, and two patents. However, it has no stated inventory, overseas warehouse, overseas agent or branch, showroom, or offline trade-show experience. Corrective-action and complaint procedures exist but lack written records, and R&D audit documentation is unavailable. No financial assessment can be made from the provided information.

Supplier typeHTT is explicitly identified as a factory, with manufacturing equipment listed and the associated-company industry identified as manufacturing. It also reports self-operated import/export rights, indicating direct export capability.

CertificationsThe supplier reports an ISO9001:2015 certificate in both its supplier-management and management-system information. This is explicit evidence of holding a recognized quality-management certification.

R&D capabilityHTT reports new products within the past year, ODM service, AutoCAD capability, two R&D patents, and one R&D engineer. However, it has no available SDK and no R&D audit documentation for design inputs, outputs, reviews, verification, and validation; the evidence supports some innovation activity but not a comprehensive R&D system.

Production capacityThe supplier lists multiple machining facilities, documented and consistently followed finished-product inspection instructions, quality assurance, 20 qualified service-capability suppliers, and a written supplier-assessment procedure with records. Against this, it reports no valid manufacturing-capacity contract with affiliated subcontractors and no inventory capability.

Customization capabilityHTT explicitly offers customization from designs, customization from samples, full customization, and ODM services. Its R&D engineer provides production technology support and prepares product specifications for client approval, directly supporting customized development.