High-carbon steel scraper cutters, hardened and tempered to the maximum limits for long life. They have the best scraping tip. This complete set includes 5 different scraper cutters and 5 handles, including: No. 1 - Supports fine lines; No. 2 - Supports general lines; No. 3 - Useful for producing small dots and circles when rotated; No. 4 - For cleaning large and wide areas; No. 5 - For creating multiple patterns using 4 lines.