How to wire 220v into your garage

Get yourself a certified electrician! Parts list: 12/2 Romex 12/2 MC cable square 1/2" metal J-box for surface mount square blank covers single gang metal box (switch on radial arm box) single gang cover plate with switch 220 receptacle 20 amp plugs male, and female (for tools to receive 220) 220v 20a square D breaker (and another breakers you want to add)