Experts in carbide tooling

ROUGH AND FINISH BORING HEADS

Introduction

High-Precision Boring Solutions

To begin with, achieving the perfect bore diameter is one of the most challenging tasks in CNC machining. Specifically, our Alumina Rough and Finish Boring Heads are designed to cover the entire hole-making process. Unlike standard drills which provide fixed sizes, boring heads offer adjustability. Therefore, you can achieve exact tolerances and superior straightness.

Furthermore, we offer a modular system that includes roughing, twin-cutting, and finishing heads. Consequently, you can handle everything from heavy stock removal to micron-level finishing. Ultimately, this versatility allows you to optimize your production line for both speed and accuracy.

EWN – Finish Boring Heads

  • Best for: high-accuracy finishing of bores
     Typical Industries: aerospace, automotive, die & mold

    Uses

    • Achieving precise final bore dimensions
    • Finishing holes after rough boring
    • Correcting bore geometry (roundness, taper)

    Advantages

    • Micron-level adjustment (0.002–0.01 mm)
    • Excellent balance → reduced vibration
    • Suitable for high-speed finishing
    • Quick insert change options

    Output

    • Very high dimensional accuracy
    • Smooth surface finish (Ra 0.4–1.2 µm)
    • Tight bore tolerance control

    Performance

    • Best performance at stable cutting conditions

     

TWN – Twin Boring Heads

  • Best for: semi-finishing & finishing with higher feed rates
     Industries: automotive, valve bodies, general machining

    Uses

    • Balanced boring → two cutters improve stability
    • Larger diameter finishing
    • High-speed machining of medium-to-large bores

    Advantages

    • Dual cutter design reduces chatter
    • Increased feed & speed capability
    • Superior bore straightness over long depths
    • Better chip evacuation due to twin-spindle geometry

    Output

    • Consistent bore geometry
    • Clean surface finish
    • Improved productivity over single-cutter heads

    Performance

    • Excellent on rigid CNC setups

     

RDH – Rough Boring Heads

  • Best for: aggressive metal removal before finishing
     Industries: heavy engineering, energy, oil & gas

    Uses

    • Opening raw or cast holes
    • Large bore enlargement
    • Deep-hole roughing

    Advantages

    • Extremely rigid & stable
    • Supports high feed & deep cuts
    • Longer insert life in heavy conditions
    • Handles interrupted cuts well

    Output

    • Fast material removal
    • Rough bore tolerance (Ra 3.2–6.3 µm)
    • Bore ready for finish boring

    Performance

    • Ideal for heavy-duty CNC mills & boring centers

RDH

CDH

EWN

TWN

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