s demand for precision machining and small-diameter deep hole drilling continues to grow, Ruilif Tools (Qingdao) Co., Ltd. has officially expanded its back pull modular drill product line with:

10 new sizes ranging from 11.00mm to 11.90mm.

With this expansion, the size range of Ruilif back pull modular drills now covers:

11.00mm–52.00mm.

This expansion further improves the size coverage of small-diameter modular drilling systems and provides more options for precision machining applications.

Smaller Diameters with the Same Modular Advantages

In traditional small-diameter machining, solid carbide drills have long been the dominant solution. However, as demands for machining efficiency, inventory management, and overall cost control continue to increase, modular structures are receiving growing attention in small-diameter applications.

The newly added small-diameter series continues the core advantages of the Ruilif modular drilling system:

• Modular design
• Quick head replacement
• High rigidity clamping structure
• Stable chip evacuation
• Reliable machining stability

Even under small-diameter machining conditions, the system maintains excellent structural strength and machining stability.

Newly Added Sizes

The newly added sizes include:

11.00mm
11.10mm
11.20mm
11.30mm
11.40mm
11.50mm
11.60mm
11.70mm
11.80mm
11.90mm

This further improves size coverage for small-diameter drilling applications.

Applications

The new small-diameter modular drills are suitable for:

• Automotive component machining
• Precision component machining
• Small-diameter deep hole drilling
• General machining applications

For machining environments requiring efficiency, stability, and inventory optimization, modular drilling systems are attracting increasing attention from manufacturers.

About the Modular Trend

Under the current environment of fluctuating raw material costs, more manufacturers are paying attention to total tooling cost rather than only tool purchase price.

With replaceable head structures, modular drills help:

• Reduce overall tooling consumption costs
• Improve tool change efficiency
• Reduce inventory pressure
• Improve machining continuity

This trend is becoming increasingly noticeable in deep hole drilling applications.

Conclusion

The expansion of small-diameter modular drills represents not only additional size coverage, but also the continued extension of modular drilling systems into precision machining applications.

In the future, Ruilif Tools will continue optimizing modular drilling systems and deep hole drilling solutions for various machining applications.