Specification: Brand new Material: nylon + zinc aluminum alloy Diameter: approx. 155mm Cutting Depth: approx. 30mm Shaft Diameter: approx. 8.5mm Shaft length: approx. 25mm Easy to use. Durable in use. Package included: 1pc x adjustable punching saw 3pcs x blades 1pc x drill bit (applicable range 0.6cm) 1pc x wrench Note: Please allow 1-5mm size errors due to manual measurement. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.