4-Flute HSS Step Drill Bit 3/16″–7/8″ (12 Steps), Spiral Groove Unibit, 1/4″ Shank for Metal, Wood & Plastic

This 4-flute HSS step drill bit is designed for precision drilling and long-lasting performance across multiple materials. Made from high-quality high-speed steel, it delivers excellent durability and heat resistance, making it ideal for drilling into metal, aluminum, wood, and plastic. The spiral flute design ensures faster chip removal, smoother cutting, and improved accuracy compared to standard step bits. With 12 step sizes ranging from 3/16″ to 7/8″, this versatile tool eliminates the need for multiple drill bits. Laser-engraved markings provide clear visibility for accurate sizing, while the 1/4″ hex shank ensures a secure fit in most power drills. Perfect for DIY projects, construction work, and professional use.