What is the precision of the drill?

The precision is 0.005-0.01mm, ensuring high precision for finishing machining.

Is the product customizable?

Yes, overall length, flute diameter, and diameter are customizable. Coating can also be selected as per requirements.

Wholesale Coated Solid Carbide HRC45 55 Inner Coolant Twist Drill for Steel

Name: Wholesale Coated Solid Carbide HRC45 55 Inner Coolant Twist Drill for Steel
Brand: CHANGZHOU AITEFASI TOOLS CO., LTD.
SKU: 1946411752

Jiangsu, ChinaCHANGZHOU AITEFASI TOOLS CO., LTD.

US$2.50-10.00

5 Pieces

Sample price:US$2.50/piece.Request sample

Product profile

Customization

Available

Customized

Non-Customized

Length

Jobber-length

Model NO.

247

Type

Twist Drill Bit

Material

Solid Carbide

Usage

Steel Working

Flute Diameter

3-40

Overall Length

50-330

Precision

0.01mm

HRC

45/50/55/60/65

Delivery

5-7 Working Days

Suitable for

Steel, Stainless Steel, Cast Iron etc

Flute Number

2-4

Transport Package

Plastic Box

Specification

Tungsten Cobalt Alloy, Tungsten Carbide

Trademark

eitfs

Origin

China

HS Code

8208109000

Production Capacity

100000/Year

Key features

High Precision & Hardness: Precision 0.005-0.01mm with HRC 45/50/55/65/65 hardness for superior cutting performance.

Advanced Coating Options: Available with AlTiN, TiAlN, TiSiN, AlTiSiN, TiN, Nano, or HELICA coatings for heat resistance.

Wide Customization Range: Customizable flute diameter 0.3-40mm, overall length 38-330mm, and specific HRC levels.

Multi-Material Compatibility: Suitable for steel, stainless steel, cast iron, titanium alloy, and heat-treated steel.

Enhanced Chip Removal: Smooth and wide flute design ensures easy removal of cuttings during processing.

Durable Cutting Edge: Special cutting edge design increases cutting ability and extends tool and machine lifetime.

Bronze Coating Visibility: Bronze coating allows for easy recognition of any abrasion on the tool surface.

OEM/ODM Support: Full customization, minor customization, and flexible customization services available.

Company profile

Management CertificationR&D CapabilitiesIn-stock Capacity

CHANGZHOU AITEFASI TOOLS 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: 10 years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤6.59h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization, ODM capability, recent product development, OEM experience for recognized brands, and quality assurance supported by ISO9001:2015 certification. It reports inventory capability, participation in EMO Hannover, two production lines, annual cutting-tool output of 1,500,000 pieces, and export coverage across East Asia, Europe, Australia, North America, and domestic markets. However, several management controls are incompletely documented: corrective-action, complaint-handling, supplier assessment, and manufacturing-capacity procedures reportedly lack records. The supplier has no overseas agents, branches, warehouse, or showroom, lacks an environmental impact assessment report and SDK, and has no valid manufacturing contract with affiliated subcontractors. Financial information is insufficient for a reliable credibility assessment.

Supplier typeThe supplier appears to be a manufacturer serving domestic and international markets, with two production lines, stated cutting-tool output, inventory capability, and OEM/ODM service capability. It also uses or may rely on affiliated subcontractors, but no valid manufacturing contract with those subcontractors is reported.

CertificationsThe supplier reports an ISO9001:2015 certificate, providing explicit evidence of a quality-management certification. No other certification is identified in the provided information.

R&D capabilityThe supplier reports new products during the past year, provides ODM services, and supports multiple design-service modes. However, it has no available SDK, so its innovation offering is stronger in product development and design customization than in SDK-based integration.

Production capacityThe supplier reports inventory capability, two production lines, 1,500,000 pieces of annual cutting-tool output, and lead times within one month or within 15 workdays depending on the slice. Nevertheless, it lacks a valid contract with affiliated subcontractors, does not continuously reconcile production quantities, and has no outsourcing SOP.

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

Product Q&A

Q:What are the terms of payment?

T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you do the rest payment.

Q:What are the terms of delivery?

EXW, FOB, CFR, CIF, ETC.

Q:How long is the delivery time?

Generally, it will take 10-15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q:Do you provide free samples?

Yes, we could offer our stock sample for free charge and you please pay the cost of freight. Custom cutting tools negotiated then we will quote the best sample cost.

Q:What materials can this drill be used for?

Suitable for wood, cast iron, carbon steel, mould steel, stainless steel, titanium alloy, tool steel, and heat-treated steel, etc.