What is the lead time for bulk orders?

Bulk orders typically take 7-30 workdays, depending on the order quantity.

What is the cobalt content in these drill bits?

The drill bits feature a precisely engineered composition with 5-8% cobalt content.

What are the available helix angles?

Available helix angles include 10, 15, 25, 35, 45, and 55 degrees.

Advanced Silicon-Based High-Hardness Coating Micro Center Drill

Name: Advanced Silicon-Based High-Hardness Coating Micro Center Drill
Brand: Zhu Zhou Evergreen Hardmetal Tools Co., Ltd.
SKU: 2253377205

Hunan, ChinaZhu Zhou Evergreen Hardmetal Tools Co., Ltd.

US$2.50

10 Pieces

Sample price:US$1.65/piece.Request sample

Product profile

Customization

Available

Type

Cylindrical Milling Cutter

Material

Cemented Carbide

Model NO.

Center drill

Coating

Uncoated

Tooth Form

Straight Tooth

Tooth Space

Extra Dense Tooth

Structure

Insert Type

Transport Package

Carton

Specification

d3 to 20

Trademark

Evergreen

Origin

China

HS Code

8466910000

Production Capacity

1000000 PCS/Month

Key features

Superior Hardness: 64-67 HRC hardness resists abrasive wear 3 times longer than standard HSS.

Wide Coating Options: Available with TiN, TiAlN, TiC, or Uncoated finishes.

Customizable Geometry: Custom geometries, flute lengths, and coatings tailored to specific needs.

High Toughness: Balances hardness with impact resistance to withstand high torque.

Fast Sample Delivery: Samples delivered in 3-7 workdays via TNT, EMS, DHL, Fedex, or UPS.

Versatile Application: Suitable for steel, stainless steel, cast iron, copper, aluminum, and plastics.

Company profile

Zhu Zhou Evergreen Hardmetal Tools Co., Ltd.

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2014-11-30Nearest Port: shanghai, shenzhenAverage Response Time: ≤8.87hTerms of Payment: T/T, PayPal, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryZhuzhou Evergreen Hardmetal Tools Co., Ltd. is identified as a Chinese manufacturer/factory focused on cemented carbide and tungsten carbide products. It reports ISO 9000 and ISO 9001 certification, proprietary import/export rights, exports to more than 120 countries and regions, and began exporting in 2014. The supplier describes dedicated sales, engineering, and production functions, with 6–10 years of R&D engineer experience and 6–10 quality-control staff. Its stated production setup includes five production lines and reported output for tungsten carbide button bits. It also lists customized products and engineering support, indicating customization capability. However, the provided information does not establish after-sales performance, financial credibility, or named customer cases. Monetary and financial figures are omitted.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and as a technical enterprise engaged in the R&D, production, sales, and finishing of cemented carbide products. This supports classification as a manufacturing supplier rather than only a trading company.

CertificationsThe supplier reports ISO 9000 and ISO 9001 certification, and specifically states that it passed ISO9001:2008 Quality Management System certification. These are explicit quality-management credentials, although the current validity or scope is not provided.

R&D capabilityThe company is described as dedicated to R&D and reports 6–10 years of total R&D engineer experience. It also states that it has obtained many Chinese patents, providing explicit evidence of technical development activity.

Production capacityProduction is identified as a core company function, supported by five production lines, 50 total staff, and stated output for tungsten carbide button bits. The supplier also reports lead times of within 15 workdays in off-peak periods and one month in peak season, indicating defined production scheduling, though capacity evidence is product-specific.

Customization capabilityThe engineering function is explicitly described as providing technical recommendations and solving or studying customized products. Customized products are also listed among the main offerings, supporting a stated ability to handle customized requirements.

Product Q&A

Q:What materials can be drilled with these bits?

They are suitable for steel, stainless steel, die steel, mold steel, carbon steel, cast iron, copper, aluminum alloys, magnesium alloys, engineering plastics, and wood.

Q:What coating options are available?

Various coatings are available, including TiN, TiAlN, TiC, and Uncoated options.

Q:Can the drill bits be customized?

Yes, custom geometries, flute lengths, and special coatings can be tailored to specific industrial requirements.

Q:What is the hardness of the drill bits?

The hardness is 64-67 HRC, which resists abrasive wear 3 times longer than standard HSS drills.

Q:What is the lead time for samples?

Samples can be delivered in 3-7 workdays.