Based on this product's specifications, here are some alternatives and similar models
Socket bit, Proxxon hex 1/4" H4 (PR23745) — 4 mm hex insert
Summary description:
Proxxon hex socket bit 1/4" H4 (PR23745) is a 4 mm hex insert designed for 1/4-inch drive ratchets and bit holders. It provides a precise fit for hex fasteners and is suitable for mechanical repairs, assembly work, and precision electronics or hobby tasks. Durable construction ensures repeatable engagement and controlled torque transfer.