What is the material of the drill bit head?

The drill bit head features high-quality tungsten carbide, offering unparalleled hardness (86~93HRA) and wear resistance.

What are the available sizes in the 5-piece set?

The set includes the most popular drill diameters: 4mm, 5mm, 6mm, 8mm, and 10mm.

What is the sample policy?

Free samples are offered, with shipping costs covered by the client. Delivery time is 15-30 days.

High-Quality Silver Drill Bit - Available for Free Sample in China

Name: High-Quality Silver Drill Bit - Available for Free Sample in China
Brand: Qewitco Fasteners Co., Ltd
SKU: 2125256162

Shandong, ChinaQewitco Fasteners Co., Ltd

US$5.00-15.00

1,000 Pieces

Product specifications

M35 Cobalt Drills

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

Customized

Standard

DIN, JIS, AISI

Model NO.

5-Piece Masonry Drill Bits Set

Length

Stub-length

Type

Twist Drill Bit

Material

M35 Cobalt Steel

Usage

Masonry Drilling

Surface

Sliver

Quality

Top Quality in China

Free Sample

Available

OEM

Yes

Shank Type

Straight Shank

Compatible Materials

Stainless Steel, Cast Iron, Titanium Alloy and Oth

Application

Brick,Concrete,Stone,Masonry Block,Mortar

Head Material

Tungsten Carbide Inlay

Body Material

Wear-Resistant Steel

Groove Design

Fluted (Helical Groove)

Transport Package

Customer Request

Specification

4, 5, 6, 8, 10mm

Trademark

Qewitco

Origin

Zhejiang, China

HS Code

8207509000

Production Capacity

10000ton/Year

Key features

Premium Tungsten Carbide: Head features tungsten carbide with 86~93HRA hardness, lasting 15-20x longer than HSS.

Versatile 5-Piece Set: Includes 4, 5, 6, 8, and 10mm sizes for various masonry drilling needs.

OEM & Customization: Supports OEM/ODM services including size, material, coating, and packaging customization.

Efficient Chip Removal: Fluted helical groove design prevents clogs and reduces resistance for faster drilling.

Secure Straight Shank: Fits most standard drill chucks for quick, secure clamping without slippage.

Bulk Pricing Policy: Tiered discounts: 5% off for 1,000+ sets, 10% off for 5,000+ sets.

Quality Assurance: 1% free replacements for defective products and 30-day return policy for quality issues.

24/7 Business Support: Dedicated account managers provide 24-hour assistance for inquiries and after-sales.

Company profile

Years of Export ExperienceExperienced TeamSelf-brandedHigh Repeat Buyers Choice

Qewitco Fasteners Co., Ltd

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2003-12-05Average Response Time: ≤0.17hTerms of Payment: T/T

AI-Powered supplier vetting

SummaryThe supplier demonstrates established export experience, with 90% of sales from exports and 22 years of exporting. It has ISO9001:2015 certification, raw-material traceability, quality assurance, and 100% finished-product inspection, although inspection is performed by packing staff and only two quality inspectors are reported. Customization is broad, covering samples, designs, full customization, minor customization, and flexible customization. Service strengths include in-stock capability, stated lead times within 15 workdays in both peak and off-season, and multiple payment and quotation terms. Limitations include no overseas warehouse, showroom, agent, branch, or overseas service-country coverage, no Fortune 500 cooperation, no new products launched in the last year, one R&D engineer, no popular-brand OEM, and an undocumented corrective/preventive-action process. Financial credibility cannot be assessed because the provided financial figures are excluded from evaluation.

Supplier typeThe supplier is strongly export-oriented, reporting 90% export sales and 22 years of export experience. It can provide in-stock service and accepts FOB, CIF, CFR, and EXW terms, but reports no overseas warehouse, showroom, agent, branch, or overseas service-country coverage.

CertificationsThe supplier reports an ISO9001:2015 certificate for both sustainable development management and management systems, plus other product compliance or sustainability certifications. The specific additional certifications are not identified, so the evidence supports ISO9001 holding but not broader certification strength.

R&D capabilityThe supplier reports one R&D engineer and no new products launched during the previous year. It also reports no available SDK and no popular-brand OEM capability, which indicates limited documented innovation evidence.

Production capacityProduction-related evidence includes raw-material traceability, 100% finished-product inspection, quality assurance, four own-brand quality-control capabilities, inventory capacity, and lead times within 15 workdays in both peak and off-season. Only two quality inspectors are reported, and finished products are checked by packing staff, so production capability is positive but quality-control depth is limited.

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

Product Q&A

Q:What core product lines do you provide?

Our core range includes Fastener Series (standard/non-standard screws, nuts, bolts), Tools & Abrasives (cutting discs, grinding wheels, drill bits), and Safety & Auxiliary Tools (industrial safety products, hand tools).

Q:Can you provide customized products?

Certainly. We offer OEM/ODM customization services. Submit your designs, samples, or specifications, and our team will deliver tailored solutions to meet your unique requirements.

Q:What payment terms do you accept?

We accept T/T payments. Terms include a 30% deposit upfront with the remaining 70% balance before shipment. Delivery follows full payment confirmation.

Q:Is there a minimum order quantity (MOQ) for your products?

MOQ varies by product type and specifications. Standard fasteners and tools offer flexibility; custom non-standard products have negotiable MOQ based on complexity and needs. Contact our sales team for details.

Q:What shipping terms do you support for sea freight?

We support diverse sea freight terms including FOB, CIF, CFR, DDP, and DAP. Select the best option for your logistics and cost goals.