Ref. No. 2649/45-4007
Answer:
In the name of Allah the most Gracious the most Merciful
The answer to your question is as follows:
Blade and razor both are same in purpose, one is just a machine and one has to be operated by hand, there is no difference between the two in terms of cutting and cleansing, both are sharp iron blades used to remove hairs. So, one can use whatever is easily available.
And Allah knows best
Darul Ifta
Darul Uloom Waqf Deoband