TOTAL OF 41 BLADES - Multiple application kit! Comes with 4 different sizes of blades for different deburring situations. 11 BS1010 blades which with a .57" blade made from 64HRC steel good for Steel, aluminum and plastic. 10 BS1018 BLADES WITH A 67 HRC for harder materials like stainless steel. 10 BK3010 small blades which is good for deburring holes as small as 1.5mm diameter. 10 BS3010 hooked blades which is good for deburring both the exterior and interior of certain holes. | MULTI MATERIAL APPLICATION - Our deburring tool is great for many types of edge cleanup. Works great for cleanup of brass, steel, aluminum, copper or PVC pipes, as well as metal edges of auto parts, gears, or any other freshly cut metal parts. Also great for trimming the edges of your 3D printed plastic objects or parts. Resin art is booming, and our deburring tool is perfect for shaving and smoothing. Whether you are an industrial professional or a DIYer, our deburring tool is great for you! | HIGHLY DURABLE HSS STEEL DEBURRING BLADES - The blades are made of tempered high-speed steel that makes them sharp, strong, and resistant to wear. HSS steel is usually 80% longer lasting then regular steel, and that’s why we use it, because we care about our performance! | SUPERIOR QUALITY AND COMFORT - Equipped with an ergonomic aluminum handle for secure grip, quality machined parts and a secure case for our extra blades, we know our tool Is built to last. | OUR GUARANTEE: We have been in business since 2013, and we care about our customers! All our Deburring tools are secured by a 1 year warranty! If you have any issues outside of the usual wear of the blades, we will replace your tool for free! If you have any other questions or concerns please feel free to contact us!