What materials can these drill bits handle?

They are suitable for various materials including stainless steel, mold steel, copper alloy, aluminum alloy, cast iron, and PVC.

What coating options are available?

Available coatings include Tin, Bright, Black & Amber, Combined Coating, Black Oxide, and TiAlN.

3PCS HSS Hex Shank Step Drill Bit Set for Metal R-Slot

Name: 3PCS HSS Hex Shank Step Drill Bit Set for Metal R-Slot
Brand: Zhejiang ZhengCheng lmport & Export Co.,LTD
SKU: 1975287451

Zhejiang, ChinaZhejiang ZhengCheng lmport & Export Co.,LTD

US$0.19-1.25

50 Piece

Sample price:US$1.50/piece.Request sample

Product profile

Customization

Available

Customized

Standard

GB/T

Model NO.

HSS or Cobalt M35

Length

Standard Length

Type

Step Drill Bit

Material

High Speed Steel

Usage

Metal Drilling

Application

Stainless Steel/Mold Steel/Copper Alloy...etc

Unit Price

Customized Support

OEM

Size

4-12mm, 4-20mm, 4-32mm

Surface Treatment

Titanium/Nitriding

Transport Package

Plastic Box or Your Requriement

Specification

According To The Order Requirements

Trademark

ZEICIN

Origin

China

HS Code

8207509000

Key features

High-Speed Steel Material: Made from premium HSS with excellent wear resistance and durability.

Ti Coating Extension: Titanium coating lasts 2x longer than standard bits for extended life.

135 Degree Split Point: Self-centering tip ensures fast, accurate starts without slipping.

OEM Customization: Accepts OEM customization with design team support for drawings.

Multi-Material Drilling: Suitable for stainless steel, mold steel, copper, aluminum, and cast iron.

Razor-Sharp Cutting: High-hardness design ensures fast, smooth drilling with minimal wear.

Efficient Chip Removal: Dual-flute design removes chips quickly for cool and efficient drilling.

Professional Manufacturer: Direct factory with advanced machinery and strict quality control.

Company profile

Zhejiang ZhengCheng lmport & Export Co.,LTD

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2019-03-26Nearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤0.76hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryThe supplier is a limited trading company with five employees, focused on steel raw materials, cutting tools, and plastic raw materials. It has self-operated import/export rights, six years of export experience, and exports reportedly account for 90% of total sales. The supplier offers OEM and ODM services, has introduced new products within the past year, and supports extensive customization from samples, designs, or full specifications. However, it has no available SDK, overseas showroom, overseas agents or branches, or offline trade-show participation. Service-management controls are weakly documented: no written corrective-action, complaint-handling, supplier-assessment procedures, or approved-supplier list were identified. Raw-material traceability, quality assurance, sustainability documentation, and fire-drill status remain unknown. A CTI audit record is provided for the period from 2025-05-10 to 2026-05-09, but the stated evaluation result is not interpretable without a defined scoring scale.

After-Sales capabilityThe supplier has no overseas showroom, agents, branches, or stated overseas service countries, and it has not participated in offline trade shows. It also lacks written complaint-handling and corrective/preventive-action procedures, while its service-capability assessment procedure has no written procedures or records, indicating limited documented after-sales infrastructure.

R&D capabilityThe supplier reports new products within the past year and offers ODM services, supporting some product-development capability. However, it reports no available SDK, so its innovation capability is evidenced for product development and design services but not for SDK-based technical integration.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, full customization, minor customization, and flexible customization. These services are reported in multiple slices and directly demonstrate broad customization coverage.

Client casesThe supplier reports providing OEM services for well-known brands, which is direct evidence of at least one type of customer engagement. No brand names, project details, product quantities, performance records, or additional customer cases are provided.

Product Q&A

Q:Are you a manufacturer or trading company?

Yes, we are a manufacturer specializing in high-speed steel cutting tools, equipped with advanced international machinery.

Q:What is the delivery time for standard products?

The usual delivery time for standard products is 5-15 days after receiving the advance payment.

Q:What is the delivery time for customized products?

For customized products, the delivery time is usually 15-30 days after receiving the advance payment.

Q:What are the available shipping ports?

We ship goods via the ports of Shanghai, Ningbo, or Yiwu, etc.

Q:Is OEM customization available?

Yes, we accept OEM customization. Our qualified design team can design products according to your drawings or images, and we will produce a sample for your approval before placing an order.