now most people think that you drop your g to an a which is false
it is dropped D tuning, and played with a pick. i covered the main parts of the song, 
the rest is pretty easy. good luck and enjoy

band:tool
song:46&2
g—————7————5h7———8p7———5h7———3h5—      g—————7————5h7———8p7———12p11———8p7— 
d——0—————0—————0—————0—————0————— x3   d———0————0—————0—————0———————0—————
a————————————————————————————————      a——————————————————————————————————
d————————————————————————————————      d——————————————————————————————————
                        ^^^^do those two riffs 3 times^^^^

g——————————————————————————————|——————————————
d———7———5————8p7———————————————|————3h5———————
a——————————————————————————————|——————————————
d——————————————————————————————|——————————————
                            x4                        

g—————7————5h7———8p7———5h7———3h5—      g—————7————5h7———8p7———12p11———8p7—
d——0—————0—————0—————0—————0————— x3   d———0————0—————0—————0———————0—————
a————————————————————————————————      a——————————————————————————————————
d————————————————————————————————      d——————————————————————————————————
                        ^^^^do those two riffs 5 times^^^^ 

Chorus
g————————————————————————————————————————————————
d———————————————————————————————————————————————— 
a————————————————————————————————————————————————
d——0——12——0——10h12——0——13p12——0——10h12——0——8h10——
                                               x4

now a lot of people think that there is a guitar solo, when in actuallity, its not.
you can easily hear bass and guitar playing. here is what some call the solo


Bass/Guitar Solo
g——————————————————————————     g———————————————————————————————
d——12——0——10——0——13h12——0—— x7  d——12——0——10——0——13h12——0——12——0
a——————————————————————————     a———————————————————————————————
d——————————————————————————     d———————————————————————————————


those are the riffs, i hope you have fun. any questions or comments please email me at 
[email protected]