If you’re in need of a replacement blade for your 437 scraper, Alpine Industries has what you need. This pack comes with 10 blades that are compatible with the Alpine Industries 4 Scraper. These heavy duty blades come in handy when you need a quick switch and fix. It is manufactured to fit into industry standard scraping tools but will work best when fitted together with the Alpine Industries 4 Scraper. The ALPINE INDUSTRIES ALP437-RB-12pk Replacement Blades For The 437 Scraper, PK120 is what you’ve been looking for.