For cleaning cylinder heads and removing old sealants and carbon build up. Hardened and tempered carbon steel shanks and heads are “offset to edge” to allow easy scraping orf flat surfaces. Simple “firmer” style bevelled points with longer head lengths allow for scrapers to be re-ground several times for maximum service life. Impact resistant square section handle for secure frip even when greasy. Set includes blade widths: 19mm (3/4″), 25mm (1″) and 38mm (11/2″). Overall length: 280mm (11″).