Hi, i will soon build a guitar, and im shopping for parts

I saw some cheap locking tuners on guitarfetish that looks good. but i have 2 questions:

1. Is it possible to change tunings with locking tuners? i tried to figure it out looking at the pics for a good 15 mins :P

2. are those good? http://store.guitarfetish.com/wiezlotu3x3f.html

im not paying 50 bucks for tuners, im on a budget
What kind of bridge are you using?
Will says:
- SmarterChild - says:
I don't know if I can help it.

Member #6 of the "I play my guitar as high as Tom Morello does" club
Yeah, you just have to unlock them
I like your Christ; I do not like your Christians. Your Christians are so unlike your Christ.
-Mohandas Gandhi
Quote by flyingsquirrel
1. I think a TOM or wraparound bridge, fixed one anyway

2. i dont think you can unlock these

you must be able to unlcok them to be able to tune it in the first place
k thanks

ill just get some normal tuners, i dont really need locking ones since im not getting a tremolo, its just gonna be simpler with normal tuners