Is customization available?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization options.

What is the minimum order quantity?

The minimum order quantity is 2 PCS.

Maxdrill DHD3.5 Concave Button Bit for Efficient Drilling

Name: Maxdrill DHD3.5 Concave Button Bit for Efficient Drilling
Brand: Maxdrill Rock Tools Co., Ltd.
SKU: 1985913205

Guizhou, ChinaMaxdrill Rock Tools Co., Ltd.

US$150.00

1 Piece

Product profile

Customization

Available

After-sales Service

Yes

Warranty

6 Months

Model NO.

85MD35CC

Certification

ISO2009:2015

Standard

GB/T2828.1-2003

Surface Treatment

Painting

Manufacturing Process

Machining

Material

Alloy Steel & Tungsten Carbides

Face

Concave Face

Type

DHD3.5

Transport Package

Plywood Carton or Plywood Pallet

Specification

60mm-76mm

Trademark

MAXDRILL

Origin

China

Key features

High Penetration Rate: Special inner structure delivers maximum energy for fast drilling speed and low air consumption.

Long Service Life: Constructed from high-quality alloy steel and tungsten carbides with advanced processing technology.

Easy Maintenance: Simple, reliable inner structure allows for easy assembly, disassembly, and bit departure.

Customizable Design: Features a concave face and DHD3.5 type, with full customization options available from samples or designs.

Strict Quality Control: 100% visual inspection of finished products by experienced QC team before shipping.

ISO Certified: Manufacturing process complies with ISO2009:2015 certification and GB/T2828.1-2003 standards.

Fast Production: Normal production takes 25 days, but only 2-3 days if stock is available for requested sizes.

Comprehensive Support: 24-hour sales response, 24/7 technical support, and free replacement for quality-related failures.

Company profile

Years of Export ExperienceSelf-brandedFast Delivery100% Finished Products Inspection

Maxdrill Rock Tools Co., Ltd.

Guizhou, 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: 20 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤7.31h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company and a trading company located in Guiyang, with associated-company activity in wholesale and retail. It demonstrates broad customization, ODM availability, recent product development, and OEM service for well-known brands. Production information states five production lines and annual output of 100,000 pieces each for button bits, drill rods, shank adaptors, and couplings. Export sales account for 71%–90%, with markets in South America, Europe, and North America. Service procedures for supplier assessment, corrective actions, and complaint handling are documented and followed. However, the supplier reports no overseas warehouse, showroom, agent or branch, or offline trade-show participation; it also has no available SDK. Finished-product inspection has instructions but no written records. No certification information or specific customer names/cases are provided.

After-Sales capabilityThe supplier has clear procedures and followed records for customer complaints, corrective and preventive actions, and service-capability assessment. However, it reports no overseas warehouse, showroom, agent or branch, and no offline trade-show participation, while the stated number of countries offering overseas services is zero; this supports documented complaint handling but limited overseas service infrastructure.

R&D capabilityThe supplier reports new products during the past year and provides ODM services, demonstrating product-development activity. Nevertheless, it has no available SDK, and total R&D engineer experience is stated as two years, so the evidence supports some innovation capability but not a strong or broad technical platform.

Production capacityProduction information states five production lines and annual output of 100,000 pieces each for button bits, drill rods, shank adaptors, and couplings, with exports representing 71%–90% of total sales. The supplier also cites self-provided raw materials, advanced production equipment, and staff training; however, finished-product inspection has instructions but no written records.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently in both the R&D and manufacturing information, indicating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands, which is evidence of branded-customer experience. No brand names, project descriptions, order references, or independently verifiable customer cases are provided.

Product Q&A

Q:What payment methods are accepted?

We accept T/T (Telegraphic Transfer), Western Union, L/C at sight, LC, D/P, PayPal, and small-amount payments.

Q:What is the production lead time?

Normally 25 days for production based on order quantity. If stock is available for your requested size, it takes only 2 or 3 days.

Q:How are samples and bulk orders shipped?

Sample orders are shipped via courier express (DHL/UPS/TNT/FEDEX) or by air. Bulk orders are suggested by air or by sea.

Q:What is the warranty period?

We provide a 6-month warranty for our products.

Q:What after-sales services are provided?

Sales team responds within 24 hours (excluding holidays), technical support is available 24/7, and free replacements are provided for failures caused by product quality.