Description: All shanks are 3.2mm(1/8") and are compatible with other multi-function machines. These 6pcs HSS end mills are perfect for all kinds of jobs such as modeling and the like. Using an engraving machine or mini- Drills various forms of cutting part ensure efficient machining, the length of which is about 40mm. For processing metal and non-metal surfaces, perfect for crafts, airfix modeling, home, repairs etc. Please check as much as possible to make sure the item is the one you need. Specification: Type: HSS Swivel Velcro Color: Silver Material: HSS (High Speed Steel) Pins Shank Diameter: 3mm Length: 40mm Quantity: 6 Pcs Package includes: 6 * HSS Swivel Velcro Note: There may be slight color distortion due to different computer resolutions.There may be slight errors caused by different hand measurements.