What charge tool do I need?

A home owner from Knoxville, TN says:
December 28, 2015
I have windows that won't stay up, so I know I need to tighten the spiral balances but I am unclear on which spiral balance charge tool I need. Since you sell two, which one do I need? 75-006 or 75-033? Thank for your help.
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Casey from SWISCO responded:
December 29, 2015
They are both used for tilt windows and serve the same function. To be honest, it's a matter of preference. Do you know exactly what balance Series you have? If it's the thicker Series 600 then I personally find that the 75-006 works well.
Spiral Balance Charging Tool for Tilt Windows
Spiral Balance Charging Tool for Tilt Windows
75-006
$9.97
Balance Installation Tool
Balance Installation Tool
75-033
$15.05
How to replace a tilt window spiral balance.
How to replace a tilt window spiral balance.
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How to adjust a spiral balance on a tilt window
How to adjust a spiral balance on a tilt window
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