I have several mechanical hardware tools, how to invent a patent and how much is it to apply for an invention patent?

Invention patent: 1, application fee: 900 yuan, printing fee: 50 yuan 2, patent registration, printing, printing fee: 205 yuan in total 3, substantive examination fee: 2,500 yuan. 4. Annual fee: 900 yuan 1-3 years, 4-6 years 1200 yuan, 7-9 years 2000 yuan,10/2 years 4000 yuan, 13 years 60000 yuan.