This Bosch HSS Step Drill Bit (Stock No. 2608597520) offers a diameter range of 6mm to 30mm, striking an excellent balance between versatility and manageability for a wide range of professional applications. Well suited to electrical panel work, plumbing installations and sheet metal fabrication, it comfortably handles the mid-to-large hole sizes most commonly encountered on site — all with a single bit. The split-point tip provides a clean, accurate entry point on thin materials without pre-punching, while the CNC ground spiral flute ensures vibration is kept to a minimum and chips are cleared efficiently for smooth, consistent results. Axial and radial relief grinding delivers peak cutting performance across every diameter step. Laser-marked figures in both spiral flutes remain clearly visible throughout the bit's service life, making diameter selection quick and straightforward. The 3-flat shank ensures a firm, slip-free grip in the chuck for reliable high-torque performance. Features and Benefits: • 6mm–30mm range delivers excellent versatility for everyday professional use • Split-point tip ensures precise, burr-free starts — no pre-punching needed • CNC ground spiral flute for minimal vibration and efficient chip evacuation • Axial and radial relief grinding for the highest levels of cutting smoothness • HSS construction for long tool life — works best when used with coolant • Laser-marked diameter figures in both flutes for quick, durable reference • 3-flat shank prevents slipping and provides powerful high-torque transmission Specifications: Diameter Range: 6mm – 30mm

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