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Focusing on the research and manufacturing of modular drill bits

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Focusing on the research and manufacturing of modular drill bits

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The tool head is made of hard alloy material, and the tool holder is made of imported materials from Germany. This design can meet the requirements of rigidity and toughness for efficient drilling.

Stainless steel blade

The MD Series drill head features a single-piece cutting structure with a rear-pull locking mechanism, providing high stability, strong rigidity, and smooth drilling performance. It is suitable for standard drilling in carbon steel, stainless steel, alloy steel, and cast iron, making it a cost-effective choice for mass-production environments.

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Carbon steel blade

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Non-standard custom tools

Custom-designed tools are developed based on specific workpiece geometry and process requirements, including composite tools capable of drilling and chamfering in a single pass. These tools significantly improve machining efficiency and reduce processing steps, making them ideal for non-standard hole shapes or high-efficiency machining applications.

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Cemented Carbide Center Drill Tip

The carbide center pilot drill tip provides precise centering, guiding, and stable cutting during deep-hole machining. It ensures that the outer inserts engage the workpiece without runout or vibration, improving overall cutting stability and accuracy.

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Hard Alloy Center Blades

The outer inserts perform the main cutting operation and feature a symmetric geometry, working together with the center pilot to deliver efficient chip breaking and smooth evacuation. Made from high-strength carbide, the inserts provide stable and reliable performance when machining wind turbine slewing bearings and other deep-hole components.

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Large-Diameter Modular Drill Rod

The large-diameter modular drill body features a high-rigidity structural design, allowing a single drill body to be compatible with multiple A1 and B1 modular head sizes within a defined range. Its robust construction and excellent vibration resistance make it ideal for wind turbine slewing bearings and other large-diameter deep-hole machining applications.

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Module Head

The modular cutting head combines a center pilot drill tip with outer inserts, delivering precise positioning, smooth cutting, and efficient chip evacuation. The outer inserts use a symmetric design, which provides higher cutting efficiency compared with non-symmetric geometries, making it an excellent solution for deep-hole machining.

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ABOUT US

Ruilif Tools (Qingdao) Co., Ltd

Ruilif Tools (Qingdao) Co., Ltd was founded in 2011 and is a professional enterprise specializing in the production of hole machining tools. The company's headquarters is located in Qingdao, Shandong, and the factory has multiple imported five axis tool grinders and professional tool measuring instruments, laying the foundation for the production of high-precision and high-quality CNC tools.

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2011

Established Time

80 +

Current Employee

25000 ㎡

Floor Area

10000 ㎡

Clean Workshop

Blog

Why Do Some Tools Break Suddenly Without Obvious Wear?

2026

04-02

When Should Cutting Parameters Be Adjusted in Deep Hole Drilling?

In deep hole drilling, changes in chip formation and machine behavior indicate when cutting parameters should be adjusted. Timely response helps maintain process stability.

2026

03-21

CCMT2026 Preview After a Successful Jinan Machine Tool Exhibition

The 29th Jinan International Machine Tool Exhibition has successfully concluded. With rising raw material costs, more customers are showing strong interest in modular drilling systems as a cost-effective alternative. Ruilif Tools engaged with visitors across multiple industries and looks forward to meeting again at CCMT2026.

2026

03-07

The 29th Jinan International Machine Tool Exhibition

Ruilif Tools (Qingdao) Co., Ltd. will participate in the 29th Jinan International Machine Tool Exhibition held on March 17–20, 2026 at Jinan Yellow River International Convention and Exhibition Center. Visit us at Hall N4 Booth C206 to explore our modular drilling systems and crown drills.

E-mail

lucas@ruiliftools.cn

Phone/WhatsApp

+86-15063986252

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Ruilif Tools (Qingdao) Co., Ltd.

Ruilif Tools (Qingdao) Co., Ltd was established in 2011 and is a professional enterprise specializing in the production of hole machining tools.