Based on this product's specifications, here are some alternatives and similar models
Step Drill Bit Bosch HSS 3-Flat Shank Set for Aluminium Plastic
Summary description:
The Bosch HSS Step Drill Bit Set features a 3-flat shank design for secure grip and is ideal for drilling through materials like aluminium, non-ferrous metals, pipes, and plastics. This set includes 3 pieces, making it versatile for various applications.