What is the typical number of threads milled by these drill bits?

Generally ranges from 3 to 6 threads depending on the material and size (e.g., 1mm bit milled 3 threads, 4mm bit milled 6 threads).

What materials are used to make these drill bits?

Mainly high-speed tool steel or hard alloy, specifically industrial grade cobalt high speed steel.

Tungsten Steel Drill Bit OEM CNC Tools HRC55 Carbide Straight Shank Twist Drill Bits

Name: Tungsten Steel Drill Bit OEM CNC Tools HRC55 Carbide Straight Shank Twist Drill Bits
Brand: Dongguan Dalang Yutong Precision Cutting Tool CO.,LTD.
SKU: 2138162932

Guangdong, ChinaDongguan Dalang Yutong Precision Cutting Tool CO.,LTD.

US$1.00-3.50

20 Pieces

Product profile

Customization

Available

Customized

Non-Customized

Standard

Other

Model NO.

3.3*50 Drill bit

Length

Entire Length

Type

Tungsten Steel Drill Bit

Material

Tungsten Steel

Usage

Machine Drill Bits

Good Hardness

HRC67

Transport Package

Individual Packing

Specification

60*10*8

Trademark

YuTong

Origin

Dongguan

Key features

Industrial Grade Cobalt HSS: Superior performance with higher hot hardness and abrasion resistance.

135 Degree Split Point: Ensures quick start and prevents walk application during drilling.

Wide Material Compatibility: Ideal for steel, stainless steel, heat resistant steel, cast steel, and super alloys.

Metric Size Range: Available sizes from 1.0mm to 13.0mm in 0.1mm increments.

High Hardness Material: Tungsten steel with HRC67 hardness for durability.

OEM and ODM Services: Customization services available for non-standard requirements.

Professional Manufacturing: Advanced equipment and strict quality control by Dongguan Yutong.

Complete Export Documentation: Includes commercial invoice, packing list, and other necessary documents.

Company profile

Dongguan Dalang Yutong Precision Cutting Tool CO.,LTD.

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableAverage Response Time: ≤4.49h

About Our Factory & Business Background

AddressDongguan, Guangdong, China

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsThread-Cutting Tool, Taps, Saw Blade, Dies, Center Drills

Our Industry Experience & Global Business Record

Main MarketsNorth America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

Our Certifications, Standards & Industry Recognition

Management System CertificationOthers

Product Q&A

Q:What is the delivery period for the order?

Standard models will be shipped within 15 to 18 days; custom models will take 20 to 25 days.

Q:Can I request custom dimensions for the bucket?

Of course! We offer custom accessory services.

Q:What documents do you provide for export?

The complete export document package (commercial invoice, packing list, etc.).

Q:How to place an order?

Please confirm via email communication before placing the order for purchase.

Q:What are the safety precautions for using twist drill bits?

Wear protective equipment like goggles and gloves. Pre-drill holes, use cutting oil for lubrication, and control drilling force and speed.

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