Tungsten Carbide Rotary Burr Bit Set 1/8" Cutting Carving Burrs for Dremel Tool

Works Well OnCast iron, Cast steel, Carbon Steel, Alloy Steel, Stainless Steel, Wood, Plastic, Glass, Stone, Marble, Jade ApplicationsShaping, Chamfering, Milling, Deburring, Material Removal MachinesDremel and most small rotary tools with three jaw chuck SpecificationsItem Name: Double Cut Solid Carbide BurrsMaterial of Burr: Tungsten Carbide, CobaltChemical Composition: WC 92%, Co 8%Tooth Type: Double CutMaterial of Shank: Nickel-Plated SteelShank Size: 1/8''Head Size: 1/4Speed (max): 8000-25000 rpmHRC: 70Quantity: 10 PackFeatures of SATC Double Cut Rotary Cutting BurrsTungsten (92%) and Cobalt (8%) Carbide Material provides extra long life and faster cutting speeds. It's worth mentioning that we used excellent original material which promises much longer life and allows for standing up to harder materials than bits of reworked material. The HRC is up to 70. superb for everyday use. High quality materials and excellent craftsmanship ensure long-lasting durability.