HOW

[Guest Sprinter]

one blade per car start with rear window and if need break off one tip

[coolzone]

seems like I use between 1 and 2 per car.

plus an exacto #11 for shaving now. that has been working awesome for me.

and I have a secret pizza cutter type blade that I am tinkering with to do some cuts

but so far nothing as of yet that is any real use. Wait now it isnt a secret.

[Guest solarspot]

None

[Guest willie]

None

guys this is probably correct. He makes momma do everything

[TINTDESIGNZ]

Thats cause I'm the man of the house!!!!!

[Guest willie]

Thats cause I'm the man of the house!!!!!

yeah until she calls the funeral director

[TINTDESIGNZ]

That might not be too long!

[Mdog]

At least 1 per car

[TintWizard]

2 separate knives:

One knife to do the cutting on the glass with(usually go through about 7 "snaps" a car , the other to do the top edge cut with on the roll downs(I find this dulls the edges along the whole grain of the blade) .

That's why I use 2 knives

[TINTDESIGNZ]

That might not be too long!

Back to the blades! I used a plotter for most sides ,but I hand cut all back glass.I snap after every cut.I use 3-4 a day.