Step Drill Poiu 6-Piece HSS Set,

Versatile Drilling: They are ideal for drilling clean, precise holes in a range of thin materials, including sheet metal (aluminum, iron, steel), plastic, and wood. Multi-size Capability: The stepped design allows for creating multiple hole sizes with a single bit, eliminating the need to frequently change drill bits. Deburring and Chamfering: The design also facilitates simultaneous deburring or chamfering of holes as they are drilled, providing a smoother finish. Specific Applications: Commonly used in fields like electrical work (for panels and conduit knockouts), automotive repairs, HVAC installations, and plumbing applications. High-Speed Steel (HSS) Construction: Made from HSS for stability and durability, with titanium coating in many cases for improved wear and oxidation resistance.