SwissBurr hand deburring tools are a fast effective and efficient way of deburring holes, slots and edges. Swiss Burr is a totally modular system of interchangeable handles, holders and blades designed to cover all applications. A choice of HSS or carbide blades, countersinks and scrapers are available to suit your specific application. Swiss Burr blades are also interchangeable with commonly available brands including Kennedy, Noga, Ruko, Seco, Snap-Tap and Stellram.Scraper BladesC40 HSS Small Triangular Scraper (4.00mm)For precision work on back edge and inner surface of holes and flat surfaces.C42 HSS Small Triangular Scraper (8.00mm)For precision work on back edge and inner surface of holes and flat surfaces.