Based on this product's specifications, here are some alternatives and similar models
Replacement trapezoid blades Topex 51 mm, 5 pieces (model T 17B405)
Summary description:
Pack of 5 replacement trapezoid blades from Topex, each 51 mm wide, model T 17B405. Designed as consumable cutting blades for utility knives and scrapers that accept trapezoid-style blades. Suitable for general cutting, trimming, scraping and precision work where a narrow 51 mm blade is required. Compatible with tools that use standard trapezoid blades of this size.