Based on this product's specifications, here are some alternatives and similar models
Step Drill Bits Bosch 2608587428 HSS 3-flat Shank
Summary description:
Bosch HSS Step Drill Bits 2608587428 feature a 3-flat shank for secure grip and stability. Ideal for drilling holes in metal, wood, and plastic. Durable HSS construction ensures longevity and precision in drilling.