ZFYQ Rotary Burr Set Carving Tool Tungsten Carbide Steel Drill Bit Grinding Head with 1/8" Shank for DIY Woodworking, Carving, Plastic Drilling, Metal Polishing, Engraving, 10 Pcs

【Dimensions】10 types of tungsten carbide burr set, the shank diameter of the rotary tool is 3 mm (1/8 inch), cutting edge diameter is 6 mm (1/4 inch), compatible with most rotary tools and die grinders. 【High quality material】Made of high quality tungsten steel, you can use for the processing of iron, steel, carbon steel, alloy steel, stainless steel, copper, aluminium and other metals, as well as marble, jade, non-metallic materials etc. Processing hardness: HRA≥85 【High processing quality】The drill bits have good processing quality and high finish, capable of processing high precision mould cavity in various shapes. 【High Efficiency】With its double-cut design, it is tens of times more efficient than a drilling tool and nearly ten times more efficient than a small polishing wheel with a handle. This is because they produce a smaller cut when cutting material. It makes the blades sharper and more resistant to wear and tear, while increasing service life. 【Large portability packaging】Stored in a small box, more convenient. We recommend the reverse cutting method to avoid reciprocating cutting. Try to prevent projection of shavings while working. suitable for drilling, engraving, carving, polishing, beveling, chamfering, grooving, reaming, hollowing.