Experience smoother, more stable drilling with the MYWISH Three Spiral Flute Step Drill Bit. Built from premium M2 high-speed steel and enhanced with advanced AlTiSiN Nano Blue coating, this bit delivers extreme hardness (up to HV3700) and superior heat resistance for long-lasting performance. The unique three-flute spiral design improves cutting stability, prevents walking, and reduces vibration for clean, precise holes. With 9 step sizes from 1/4 in. to 3/4 in., it's ideal for metal, stainless steel, aluminum, wood, and plastic applications. The 1/4 in. hex shank provides secure grip and quick changes, making it a must-have for professionals and DIYers alike.