The Hyde 19451 Scraper Blade is a versatile tool. It's designed to fit the Mfr. Model Number 19430, 19440, and 19450. The scraper blade measures 4" in length. Made of hardened carbon steel with two resharpenable edges, this scraper blade is durable and easy to use. The Hyde 19451 Scraper Blade is something you will definitely want to equip yourself with.