Based on this product's specifications, here are some alternatives and similar models
Drill bits DeWalt HSS E Cobalt 9.0 mm, set of 10
Summary description:
DeWalt HSS E Cobalt drill bit set, 9.0 mm diameter, includes 10 pieces for bulk use. High-speed steel with cobalt alloy for improved heat resistance and wear performance. Intended for drilling into hard metals and industrial materials where durable, long-life bits are required. Suited for workshop, maintenance and professional metalworking tasks.