1.11 TOTAL ROBUST S BLADES We know that intensive use makes your blades dull. That's why our hand deburring set includes an additional 10 pack of razor sharp speed BS1010 HRCC64 replacement steel blades. However, if you need more than your 11 blades, you have the option of our single BS1010 replacement blade pack. 2.FOR VARIOUS MATERIALS Ideal for machining brass, steel, aluminium, copper or as a pipe deburring tool for plastic pipes as well as for metal edges of car parts, gears, or other freshly cut metal parts. Also as a 3D printer accessory for trimming the edges of your 3D printed plastic objects or parts. Our deburring tool is the tool for professional plumbers, industrial professionals, mechanical engineers, or DIY enthusiasts. 3.DEBURRING BLADES MADE OF EXTREMELY DURABLE HSS STEEL Our deburring tool features hardened speed steel blades that are sharp, sturdy, and wear resistant. HSS steel is typically 80% more durable than normal steel—and that's why we use it, because performance is important to us! 4. AND COMFORT Our deburring tool boasts an ergonomic aluminium handle for a secure grip, along with quality components, and includes a safe storage box for additional blades. We know our tool will serve you well for a long time. Make 3D printing, DIY projects, and much more a breeze with this deburrer.