Based on this product's specifications, here are some alternatives and similar models
Hikoki sabre saw blade set 100 mm, compatible with RM11B/S422BF — 5 pieces
Summary description:
Set of 5 Hikoki sabre saw blades, 100 mm length, designed for use with models RM11B and S422BF. These blades suit cutting tasks where a short 100 mm blade is required, offering compatibility with corresponding sabre saw shanks. Intended for general demolition, pruning and light-to-medium cutting applications that require compact blade length and easy replacement.