10pcs 1/8" 3mm HSS Router Bits Wood Cutting Jig Milling Fits 40 Rotary Tool SetDescription: 1/8" Shanks (Fit for Rotary Tools) as Titanium Nitride CoatedAdvantage: Pack of Ten 1/8" Carbide Engraving Bits Single Flute Replacements for CNC Machine, These Long Lasting Bits are made of carbide for precise, easy to cut experience Non-stick knives, smokeless, tasteless, mute, mirror grinding processLarge capacity chip groove and spiral blade, greatly increase the efficiency and quality of productsA wide range of materials can be engraved, including: Copper, Aluminum, MetalABS, Acrylic, PVC, Nylon, Resin Most Plastics WoodFiberglassCarbon Fiber Specification: Material: HSS #4241Typ: Carbide CNC Cutters Blade Diameter: 3mm Length: 4cm / 1.57" (in Approx.) Quantity: 10pcsNote: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you. Package Included:10x1/8" Carbide CNC Single Flute Tool Cutters