SINGLE-HELICAL STEP DRILLS FOR THREAD PILOT HOLES, SHORT SERIES

Single-flute step drills for threading pre-holes, short series, are designed to perform precise drilling on metal, facilitating hole preparation prior to threading. The single-flute configuration allows effective chip evacuation, reducing the risk of clogging during machining. The short series ensures greater tool rigidity, improving hole stability and precision. These drills are suitable for applications requiring accurate control of hole diameter and quality, which are essential for the correct execution of subsequent threading. Their geometry is optimised to ensure smooth feed and long operational life.