10PCS 3mmx6mm Rotary Cutter Carbide Rotary Burr Dremel Tools for Woodworking Engraving, Drilling

【Carbide Grinder Bits】Tungsten Carbide Usage: Rotary Burr. Total length 45-50mm, cutting diameter 1/4"(6mm), shank length 35mm, shank diameter 1/8"(3mm) 【Usage】rotary cutter, high micro hardness, high abrasion resistance, good toughness 【Double cut design】The groove lines of the head are crossed, more suitable for object whose density is relatively low, such as wood, plastic and aluminum. 【High performance】 for processing copper, aluminum, alloy, iron, marble, jade, wood and plaster, etc. 【Highly Recommended】For polishing metals and soft plastics, jewelers, lapidary use, hobbies, DIY, crafts, craft modeling, home repairs and much more. Specification: Material: Tungsten Steel Solid Carbide Shank Diameter: 3mm (1/8") Cutting edge diameter: 6mm (1/4") Tail length: 35mm Tooth thickness: double serration Hardness treatment up to HRA ≥ 85