HSS Cobalt Spiral Flute Step Drill Bits Set, 5 Pcs High-Speed Steel Step Bit Kit (1/8"-3/4"), Nitrided Coated Unibit with 1/4" Hex Shank for Metal Aluminum Steel Wood Drilling

Cobalt Spiral Flute Step Drill Bit Set

• Constructed from High-Speed Steel: These step drill bits are made from HSS, a material chosen for its ability to maintain hardness at elevated temperatures. This offers a practical balance of durability and value for general-purpose drilling tasks in workshops and home projects
• Spiral Flute Design for Improved Stability: The spiral flute geometry is designed to facilitate smoother cutting and more efficient chip evacuation compared to straight flute designs. This can help reduce walking on curved surfaces and provide better control during the drilling process, particularly in thin materials
• 5-Piece Set for Common Drilling Tasks: This kit includes five individual step bits with diameters of 1/4", 3/8", 1/2", 5/8", and 3/4". Each bit features a standard 1/4" hex shank, making them compatible with most power drills and screwdrivers for a range of hole-sizing needs
• Laser-Etched Size Markings for Clarity: The step sizes are marked using a laser-etching process. This method is intended to create a clear and durable marking that can remain visible through normal use, allowing you to identify the correct drilling depth at a glance
• Versatile Application Across Common Materials: Designed for use on a variety of materials, these HSS step bits are suitable for drilling into thin metals, aluminum, copper, wood, and plastic. They serve as a practical addition to a toolkit for tasks like electrical work, lock installation, and hobbyist projects