IRWIN 15103ZR 15103 STEP DRL #3T 1/4-3/4″TIN 9 SZ

Experience precision and versatility with this step drill bit, engineered by IRWIN for a wide range of applications. The titanium nitride coating not only enhances durability, resisting heat and friction, but also significantly extends the lifespan of the bit, ensuring dependable performance. Designed to provide true round holes thanks to its single-flute cutting edge, it excels in drilling through thin metals, plastic, wood, and laminates with ease.