The SITE H3RO 3 Piece Step Drill Kit is engineered for efficient and precise drilling across a wide range of common diameters. Featuring the advanced SITEH3RO coating, these step drills are designed to deliver exceptional performance, enhanced durability, and reduced heat generation, ensuring longer tool life and smoother cutting. Perfect for professionals in construction, metalworking, and fabrication, this kit offers precision and reliability when working with thin-gauge materials across multiple industries. Upgrade your drilling capabilities with the Rotabroach SITE H3RO 3 Piece Step Drill Kit—an essential addition to any professional's toolkit. Features and Benefits • High performance coating for up to 75% longer tool life • Split Point for non-slip • Spiral Flute for speed • Suitable for use in standard 3-jaw drill chucks Contents • 1x 4-12mm • 1x 4-20mm • 1x 4-30mm