Based on this product's specifications, here are some alternatives and similar models
Drill bit by Wolfcraft — 1-cylinder drill bit (model 3303000)
Summary description:
Wolfcraft 1-cylinder drill bit (model 3303000) is a single-cylinder drill accessory designed for cutting and enlarging holes with a single cutting element. As a replacement or spare part from Wolfcraft, it suits compatible hand drills and drill rigs. Use for repair, maintenance, or precise drilling tasks where a single cutting geometry is required.