Start by creating a rounded rectangle using rounded rectangle shape tool.

Press Ctrl+T. Right click the layer and select warp. Adjust nodes to get the shape as shown.



Enable add to shape area form the top bar. Create a rectangle using rectangular shape tool. Press Ctrl+T. Right click the layer and select warp. Adjust nodes to get the shape as shown.



Double click the layer to open layer style window. Apply layer style with the settings shown.







Ctrl+Click the layer thumbnail to get the selection. From select menu apply modify>>contract. Contract the selection by 2 pixels. Move the selection 2 pixels right.



Create a new layer and apply a black to white gradient in linear mode. Change the layer mode to screen.



Similarly create the other blade.



Create a rounded rectangle using rounded rectangular shape tool.



Enable add to shape area form the top bar. Create an ellipse using elliptical shape tool.