ITEM NAME:7 pcs HSS Circular Wood Cutting Saw Blade Discs Extension Rods for Rotary T H5I2 7 pcs HSS Circular Wood Cutting Saw Blade Discs Extension Rods for Rotary T H5I2 Made from high speed steel, with super wear resistance and long service life. Improved hardness. Under high speed it will show super fatigue fracture resistance of high speed steel. Strong cutting performance. A must have tool for carving working. Fine grinding repeatedly on blade surface, high standard of surface finish. Mainly used on copper, iron, aluminum, alloy and other medium hard thin metal material. Can also be used for plastic, wood, etc. Color: Silver Materiel: HSS Inner Diameter: 6.35mm Outer Diameter: 22mm, 25mm, 32mm, 35mm, 44mm Thickness: 0.7mm(of 22mm, 25mm, 32mm) 0.8mm(of 35mm, 44mm) Maximum Speed: 20000rmp Extension Rod Diameter: Approx. 3.17 x 50mm / 0.12 x 1.96 inch Weight: 40g(approx.) Quantity: 5 pcs Saw Blades + 2 pcs Extension Rods Package Includes: 5 X Cutting Blades(22mm&25mm&32mm&35mm&44mm) 2 X Extension Rods Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.