Set of carbide drills with a 1/8 "(3 mm) , which includes the most popular forms, There is always a type that meets your needs.People's cutting style:Carbide / aluminum strawberries are generally used in ferrous and non-ferrous metals, aluminum, mild steel And also for all non-metallic materials, such as plastic and wood. More professional It is usually used to cut, shape, grind, polish and eliminate bright edges, burrs and excesses material (burrs).Easy cut:Designed for a quick removal of material with minimal chip load, prevents the accumulation and overheating of iron chips that damage the cutting head.Applicable drill:It can be worked with most grinders and engraving tools.Material: Quick-cut steelTips: 1. Must be fixed during use. 2. The cutting form is better with conventional milling to avoid mutual power. 3. Prevent the flying debris from working, wear safety glasses. 4. There is oil in the head.Delivery Quantity: 1 set (20 pieces)Package Contents: Only the above package contents, excluding other products.Size: Shank diameter 3.1mm, total length 39mm(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Color: silver(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)