Based on this product's specifications, here are some alternatives and similar models
Irwin HSS Metal Twist Drill Bit 8 mm, cylindrical shank, model 1863361
Summary description:
Irwin HSS metal twist drill bit, 8 mm diameter with a cylindrical (walcowe) shank, model 1863361. Made from high-speed steel (HSS) for drilling steel and other metals, offering good wear resistance and heat tolerance. Suitable for hand drills and drill presses with a compatible chuck; ideal for metal fabrication, repair and maintenance tasks.