Features: Brand new and high quality Made of strong HSS (High Speed Steel), durable and firm, The mini Circular Sawblade Set is 20000RPM, so it is possible to make these functions (settings accurately, quickly, and accurately cut). 1/8" (3mm / 3.3mm) shank cutting disc mandrels fit for most power die grinders or rotary tool & air tool. Our mini Circular Sawblade Set is suitable for wood, plastics, aluminium, soft metals and so on. Suitable for Carpentry, Flooring, Hobbies and Crafts. Package included 6PCS Circular Sawblades + 2PCS Extension Rod. The mandrel must be into bottom and the screw of the rod must be tighted, and sure the size of hole is smaller than the screw. Specifications: Material:High Speed Steel Sawblade diameter: 22mm(7/8”), 25mm(1’), 32mm(1-1/4”), 35mm(1-1/2”), 44mm(1-3/4”), diameter of hole 6.35mm(1/4”) Diameter of connecting rod 3.175mm(1/8”) Package Includes: 6PCS Circular Sawblades 2PCS Extension Rod note: Please allow 1-3cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.