Ergonomic handle: Crafted with exceptional attention to detail, the handle is designed for comfort and ease of use, enhancing overall operational effectiveness. Precision adjustment: Ensure secure tightening of the adjusting screw on the pressing arm to maintain the integrity of small-diameter punch needles during machining. High precision: With a precision accuracy of 0.005 mm, this tool features a roller hardening treatment for enhanced hardness and wear resistance, along with multi-directional adjustment screws . Double roller design: The innovative double roller design eliminates the need for center calibration, featuring quenched and hardened rollers paired with a belt gear for smooth. Increased efficiency: This design maximizes work efficiency by reducing setup time and labor requirements, ensuring a streamlined grinding process.