Tabbed by Rob saunders
 This is a tool song that really needed tabbing. It is
 one of the best tool songs ever written. 
This isn't perfect but comes quite close

Intro x4
g-----------------------------|
d-----------------------------|
a-----------------------------|
d-2--0-2--2-2-0--2-0-2--2-2-12| that is a twelve not 1-2

Pre-verse or chorus x4
g-----------------------|
d-----------------------|
a-------0h2-------------|
d-2-0h2----3-2-0-3-0-2h3|

intro x3
pre verse/chorus x2
chorus x4
g---------------------|
d---------------------|
a---3----2------------|
d-2---2----0-4-5-0-0h2|

riff 1 x2
g--------------------------------------|
d---2-0-------3-2-2-0---2-0-------3-2-0|
a-------3-2-0---------------3-2-0------|
d-2-------------------2----------------|

intro x2
then play this four times
g-----------------|
d-----------------|
a-----------------|
d-2--0-2-2-0-2-2h3|

chorus x4 then this x4
g-----------------------------------------|
d-----------------------------------------|
a----------------------------------------3|
d-0h2-2-2-0-5-0-3-0-1-0-2-2-2-0-5-0-3-0-2-|

after quiet part x6
g------------------------|
d------------------------|
a------------------------|
d-4-2-2-2-2-2-4-2-5-0-0-0|

intro x2
riff 2 x8
g------------------------|
d-0-----2-----0-----2----|
a---0-----2-----0-----2--|
d-----2-----2-----2-----2|

this x8
g--------------|
d--------------|
a----3----2-2-3|
d-2----2-------|

after 
g------------|
d------------|
a------------|
d-8-8-8-8-8-8|

then finish with
g-----------------------------|
d-----------------------------|
a-3---3---3---3---3---3-------| 
d---5---5---5---5---5---5--0-2|

it will take a while to learn.
If you have any corrections or if you know the quiet part please send to chinosheir@aol.com