Based on this product's specifications, here are some alternatives and similar models
Spade drill bit Irwin 10502822 – spade bit Ø 38 mm for wood
Summary description:
Irwin 10502822 spade drill bit with a 38 mm (3.8 cm) diameter designed for drilling through wood and similar soft materials. The flat spade design enables fast material removal and straight holes for carpentry, framing, and electrical or plumbing installations. Fits standard drill chucks and is used for quick rough boring tasks.