Long Neck Carbide End Mills for Steel Machining

Product Detail

PEX Series Long Flute End Mill – The Extending Hand for Deep Cavity Machining, Engineered for Extreme Depth-to-Diameter Ratios

Long Flute Design · Reinforced Core · Superior Chip Evacuation · Specifically Built for Deep Slot, Deep Cavity, and High Side Wall Machining

Core Positioning: The Choice for Rigidity and Chip Evacuation in Deep Cavity Machining

In mold deep cavity machining, narrow slot processing, and high side wall contour milling, excessive tool overhang, insufficient rigidity, and difficult chip evacuation are the three major challenges restricting processing efficiency and quality. The PEX Series Long Flute End Mill, featuring an ultra-fine grain carbide substrate and optimized long-flute geometry, is specifically designed for demanding scenarios that pursue large depth-to-diameter ratio machining and side wall perpendicularity. While maintaining sharp cutting edges, it achieves a perfect combination of rigidity and chip evacuation in deep cavity machining through a reinforced core design and polished flutes. It is the ideal tool for deep slot milling and deep cavity core machining.

Product Features

PEX Series Core Advantages: Precisely Solving Machining Pain Points

• Optimized Long Flute Design for Extended Machining Depth

  
  

Pain Point: Standard tools have insufficient flute length, making it impossible to complete deep cavity machining in one pass, requiring multiple step-downs or extended tool holders, which affects efficiency and perpendicularity.

Solution: A long flute ratio design is adopted, with flute lengths reaching 3-5 times the diameter or even higher. While ensuring tool rigidity, it maximizes cutting depth, enabling one-pass forming of deep slots and cavities, avoiding step marks, and improving processing efficiency and surface quality.

• Reinforced Core Structure for Resisting Radial Deflection

  
  

Pain Point: Long flute tools have excessive overhang, making them prone to deflection during cutting, leading to poor side wall perpendicularity or dimensional instability.

Solution: A significantly reinforced core diameter design greatly enhances the tool's bending rigidity. Even under deep cavity side milling and large radial cutting forces, it effectively suppresses tool deflection, ensuring side wall perpendicularity and dimensional accuracy.

• Polished Chip Flutes for Worry-Free Chip Evacuation

  
  

Pain Point: In deep cavity machining, chips have a long evacuation path and are prone to clogging in the flutes, scratching the machined surface or causing tool jamming.

Solution: Deeply optimized chip flutes with mirror-like polishing treatment greatly reduce the friction coefficient between chips and the flute surface. This ensures that long chips curl smoothly and are quickly ejected from the deep cavity area, preventing surface damage and tool overheating caused by poor chip evacuation.

• Sharp Cutting Edges with Diverse Coatings for Multi-Material Adaptability

  
  

Pain Point: Different materials have varying requirements for tool sharpness and wear resistance, which is even more critical in deep cavity machining.

Solution: Maintains an extremely sharp edge to reduce cutting resistance and minimize heat generation & Coated with AlTiN/AlCrN (Aluminum Titanium Nitride / Aluminum Chromium Nitride) multi-layer composite coating , offering high red hardness and oxidation resistance to enhance heat resistance and tool life.

Product Specifications

Product Applications

• Mold Industry: Deep cavity core side wall milling, deep slot machining, slider deep cavity roughing and finishing.

  
  

• Precision Parts: Deep hole side wall milling, deep slot contour machining, high side wall thin-wall part milling.

  
  

• General Machining: Suitable for deep cavity machining of various materials including aluminum alloys, 45# steel, P20 mold steel, and copper alloys.

Let every deep cavity cut become a precise exploration into the depths!
Contact our technical engineers today to match the optimal machining parameters for your PEX Long Flute End Mill and unlock new depths in deep cavity machining!

Our Company

Guangzhou Jhome CNC Tool Co., Ltd. serves as a core subsidiary of Dongguan Dohre CNC Tool Co., Ltd. (Group) strategically positioned in South China. Since its establishment, the company has been dedicated to the R&D, production, and sales of high-end alloy cutting tools. Leveraging the group's strong comprehensive strength, the company deeply integrates technological innovation resources and market advantages, committed to providing global customers with excellent cutting solutions.

As a vital component of the group's strategic layout, Guangzhou Jhome shares the parent company's prestigious qualifications, including National High-Tech Enterprise, Guangdong Provincial Specialized, Refined, Unique, and New SME, and Guangdong Provincial Innovative SME. Benefiting from the group's cumulative 33 invention and utility model patents, the company receives ongoing annual R&D investment exceeding RMB 10 million, ensuring its technology remains at the forefront of the industry.

The company fully adopts the group's advanced manufacturing system, equipped with core machinery such as high-precision grinding machines, tool measuring instruments, and universal tool microscopes imported from Germany and Switzerland. It strictly implements the group's unified quality control standards. More than 65% of the current team consists of R&D, technical, and quality control personnel, forming a professional and efficient talent structure that provides solid assurance for product quality.

All of Guangzhou Jhome's products are positioned in the high-end precision machining field and are widely used in high-tech industries such as IT, aerospace, and automotive manufacturing. The products have earned an excellent reputation in both domestic and international markets for their superior quality and reliable performance. Capitalizing on its strategic location in the Guangdong-Hong Kong-Macao Greater Bay Area, the company radiates its influence to Southeast Asian and global markets, forming strategic synergies with the group's other subsidiaries, including Changzhou Zhengheyuan and Vietnam Bluetool, to jointly serve global customers.

Based in South China and serving the world, Guangzhou Jhome CNC Tool Co., Ltd. will continue to leverage the group's comprehensive advantages, pursue continuous innovation and excellence, and strive to become a benchmark enterprise in the high-end CNC tool industry in South China. Together with the parent company, it aims to advance towards the goal of becoming a globally leading CNC tool manufacturer.

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Guangzhou Jhome CNC Tool Co., Ltd. serves as a core subsidiary of Dongguan Dohre CNC Tool Co., Ltd. (Group) strategically positioned in South China. Since its establishment, the company has been dedicated to the R&D, production, and sales of high-end alloy cutting tools. Leveraging the group's strong comprehensive strength, the company deeply integrates technological innovation resources and market advantages, committed to providing global customers with excellent cutting solutions.

As a vital component of the group's strategic layout, Guangzhou Jhome shares the parent company's prestigious qualifications, including National High-Tech Enterprise, Guangdong Provincial Specialized, Refined, Unique, and New SME, and Guangdong Provincial Innovative SME. Benefiting from the group's cumulative 33 invention and utility model patents, the company receives ongoing annual R&D investment exceeding RMB 10 million, ensuring its technology remains at the forefront of the industry.

The company fully adopts the group's advanced manufacturing system, equipped with core machinery such as high-precision grinding machines, tool measuring instruments, and universal tool microscopes imported from Germany and Switzerland. It strictly implements the group's unified quality control standards. More than 65% of the current team consists of R&D, technical, and quality control personnel, forming a professional and efficient talent structure that provides solid assurance for product quality.

All of Guangzhou Jhome's products are positioned in the high-end precision machining field and are widely used in high-tech industries such as IT, aerospace, and automotive manufacturing. The products have earned an excellent reputation in both domestic and international markets for their superior quality and reliable performance. Capitalizing on its strategic location in the Guangdong-Hong Kong-Macao Greater Bay Area, the company radiates its influence to Southeast Asian and global markets, forming strategic synergies with the group's other subsidiaries, including Changzhou Zhengheyuan and Vietnam Bluetool, to jointly serve global customers.

Based in South China and serving the world, Guangzhou Jhome CNC Tool Co., Ltd. will continue to leverage the group's comprehensive advantages, pursue continuous innovation and excellence, and strive to become a benchmark enterprise in the high-end CNC tool industry in South China. Together with the parent company, it aims to advance towards the goal of becoming a globally leading CNC tool manufacturer.

Frequently Asked Questions (FAQ)

Q: What are the core strengths of your factory?

A: We are a professional CNC tool manufacturer founded in 2002, with over two decades of technical expertise. Our core strengths include:

Equipment & Technology: Equipped with high-precision manufacturing and inspection machinery from Germany and Switzerland (e.g., grinding machines, universal toolmakers' microscopes).

Expert Team: Over 45% of our staff are R&D technicians, providing professional development, quality inspection, and after-sales support.

Customer Endorsement: We serve global Fortune 500 companies such as BYD, Ford Motor, and ZTE, covering demanding industries like automotive, communications, and aerospace.

Q: What customized services do you offer?

A: We support in-depth customized development:

Non-Standard Tool Design & Manufacturing: Customized solutions based on customer workpiece materials, machining equipment, and process requirements.

Production Line Optimization: Tooling solutions to improve efficiency, precision, or reduce costs for existing production lines.

Joint R&D: Collaborate with customer technical teams to develop specialized tools for new processes.

Q: How do you ensure tool quality and longevity?

A: We ensure quality through full-process control:

Material Control: Use imported and top domestic carbide and coating materials.

Precision Manufacturing: Rely on German/Swiss equipment to guarantee micron-level accuracy.

Strict Inspection: Every batch undergoes multiple inspections with tool measuring instruments and microscopes.

Continuous Improvement: Optimize durability and stability based on end-use data feedback.

Q: How do you provide technical support and after-sales service?

A: We offer full-cycle services:

Pre-Sales Support: Free consultation on machining solutions and sample testing.

On-Site Service: Rapid response to field issues with process optimization suggestions.

After-Sales Guarantee: Maintain customer tool usage records,Regularly monitor performance and offer services such as regrinding and coating repair.

Q: Which industries do you serve? Any typical application cases?

A: We specialize in high-precision, demanding fields:

Automotive Manufacturing: Engine components, new energy battery structural parts, transmission system machining.

Communication & Electronics: Mobile phone metal frames, base station heat sinks, chip packaging mold processing.

Aerospace: Titanium alloy/high-temperature alloy components, composite material Specialized cutting tools.

Mold Industry: Precision mold cavities, high-gloss surface machining solutions.

Q: What is the typical delivery time?

A: Standard products are readily available and can be shipped within 24 hours. Custom tools typically require 5–15 working days, depending on complexity. Urgent orders can activate our rapid response process to meet deadlines.

Q: Do you support small-batch or sample orders?

A: We encourage customers to verify solutions through samples and support small trial production orders. We offer free sample consultation—our technical team will recommend the most suitable tools based on your needs and provide test feedback.

Q: How can we start cooperation or request a quote?

A: You can quickly start cooperation through the following steps:

Leave a message on our website or contact us directly with details such as machining materials, equipment, and process requirements.

Our technical team will assess your needs and provide a preliminary solution and quote within 24 hours.

Arrange sample testing or on-site technical exchange, then confirm the order after finalizing the solution.

If needed, I can further provide suggestions for structured webpage layout of the FAQ or design more focused technical Q&A for specific industries (e.g., aerospace, new energy vehicles).