Feature:* This end mill cutters set is designed for rotary tools.* Machinable materials: cast iron, cast steel, bearing steel, high carbon steel, nickel chrome alloy, bronze, brass and other metals or tiles, marble, jade bone and other non-metallic.* High efficiency, high-quality finish, long service life, good economic returns.* Easy to use, safe and reliable, can reduce labor intensity.* Mechanical parts chamfering, rounding and groove processing.* Double chamber is crossover lines, not easy to lock lines, more suitable for object with relatively low material density.* Ideal for automobiles, marine, sculpture, machinery, etc. Specification:* Type: long reach carbide rotary hook and loop fastener * Material: carbide cone * Color: silver * Shank diameter: approx. 1/4" (6mm)* Shank length: approx. 150MM-160mm ( 6 Inch)* Optional model: A/ B/ C / D* To:A: 8mm cone cone bitB: 10mm cone cone bitC: 8mmd ball headD: 8mm ball shapePackage Contents:1 x Carbide Rotary Tool(Depends on your choice)Note:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.