Based on this product's specifications, here are some alternatives and similar models
Spade drill bit Irwin 10507904 — 5 mm, single-piece for wood drilling
Summary description:
Irwin 10507904 spade drill bit, single-piece design with 5 mm diameter for rapid wood boring. Intended for manual or cordless drills, this spade bit provides a flat paddle profile for fast chip removal and straight holes in soft and hard wood. Suitable for carpentry, electrical cable routing, and general joinery tasks.