Black Hawk Abrasives 10-piece double cut tungsten carbide burr set features ten of our most popular rotary files all with ¼ inch shanks and 1/4 inch or 3/8 inch cut diameters (dependent on the shape). Each Burr is made with premium tungsten carbide and ground using top-of-the-line 5 axis CNC machines for precise flute uniformity and vibration free cutting action. Carbide burrs are one of the most versatile tools for forming and shaping metals and non-ferrous materials on the market today. These grinder bits attach to a pencil grinder, die grinder, or rotary grinder and are great for stock removal of all kinds especially in confined spaces. Included Carbide Burr Shapes: SA-1 cylinder burr - Deburring, SA-3 cylinder burr - Deburring, SC-1 radius end cylinder burr – Deburring, surface milling and contouring, SC-3 radius end cylinder burr – Deburring, surface milling and contouring, SD-3 ball shape burr - Contouring, hole deburring and milling, SE-3 oval shape burr - Contouring, SF-3 rounded tree shape burr – Cutting narrow contours, SH-1 flame shape burr - Contouring, SL-1 taper radius end burr – Cutting narrow contours and surface milling, SL-3 taper radius end burr – Cutting narrow contours and surface milling. All the die grinder bits above are double cut making them ideal for harder materials such as steel, stainless steel, titanium, etc. Furthermore, the crosscut flutes produce faster stock removal, reduced loading, small chips and thus a smoother finish than single or aluma cut burrs. This kit was assembled with versatility in mind. With this carbide burr set you can quickly and easily debur, contour, prep welds and much more in a virtually any nook, cranny, hole, divots or at any angle. Each set includes a sturdy carrying case featuring a locking mechanism for easy storage. So, if you are looking to start using carbide burrs but don’t know where to start, look no further.