Essential accessory set 1/8 shank Compatible with power rotary tools; high speed steel with nickel finish.The mandrel design simplifies the process of changing accessories and makes it easy to cut through a range of materials from metal to plastic Provide sturdy mounting base for sanding, buffing or cut-off wheels & discs, saw blades GREAT TOOL FOR DIY – Compatible with most power rotary tools. The Chiloskit cutting wheel Mandrel for rotary tool is suitable for cutting disc . They are a great tool as well as perfect gift for DIY hobbyists. This 3mm/ 1/8inch Shank cut-off wheel holder fit for most and other Compatible Rotary Tools.The mandrel design simplifies the process of changing accessories and makes it easy to cut through a range of materials from metal to plastic Pack of 6. Material: High Speed Steel.Small size has 1/4" screw with 5/16" base & cap, overall length 1-3/4", 1/8" shank Ideal for the thicker cut-off and grinding wheels. Can be mounted in most drills and die grinders with 1/8" collet.