Cobalt Step Drill Bit Set – 1/8″-7/8″3pcs – Impact Ready – Unibit Step Drill Bit. Cobalt Step Drill Bit Set. 1/8″-7/8″3pcs – Impact Ready – Unibit Step Drill Bit. Four cutting blades design guarantees a faster and smoother cutting, allows swarf escape easily. TiAlN coating with 89HRC surface hardness for cutting harder materials and achieving higher cutting speeds. M35 cobalt HSS step drill perfect for cutting stainless steel, metal sheet, wood, plastic, aluminum sheet, copper, and other metal sheets. Includes 3 bits with 34 total step sizes ranging from 1/8″ to 7/8″. Efficient and precise cutting with four spiral flute design. Can cut through harder materials with ease. Versatile and suitable for various materials. Multiple step sizes for different drilling needs. Why choose our Cobalt Step Drill Bit Set? Upgrade your drilling experience with our Cobalt Step Drill Bit Set. With its four cutting blades design, it guarantees faster and smoother cutting, allowing swarf to escape easily. The TiAlN coating with 89HRC surface hardness enables cutting of harder materials and achieving higher cutting speeds. Made of M35 cobalt HSS, this step drill is perfect for cutting stainless steel, metal sheet, wood, plastic, aluminum sheet, copper, and other metal sheets. Don’t settle for ordinary drill bits when you can have the efficiency and precision of our Cobalt Step Drill Bit Set. With 34 total step sizes ranging from 1/8″ to 7/8″, you’ll have the right size for any drilling task. Order your Cobalt Step Drill Bit Set today and experience the difference! Alternative Carriers – We may use alternative carriers e. To ensure your package arrives safely and on time. Your feedback is extremely important to us. We strive to provide the best products and customer service possible. We are committed to resolving any problems and ensuring your satisfaction. Thank you for supporting our small family business!