The Triangular 449 is the 1 in (25 mm) carbide blade that comes on the Bahco 625 Ergo Scraper, sold on its own as a replacement.
The 625 is an 11 in carbide scraper for stripping paint, glue, varnish and rust. Its blades are interchangeable, so you can keep a spare 449 on hand or switch to the Tear Drop, Pear or Round blade for curved and detailed work.
Bahco traces back to 1886, when Johan Petter Johansson founded a mechanical workshop in Enköping, Sweden. He invented the modern pipe wrench in 1888 and patented the adjustable wrench in 1891. The Bahco name comes from B.A. Hjorth & Co., the firm that sold his tools, and the brand is now part of Snap-on.