How do I use a whet stone to sharpen chisels?

I have purchased a large whet stone for sharpening some blunt chisels, but I'm not sure what to do. Do I need to use an oil, what angle should I hold the chisle at?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).