Redmax makes the lightest trimmers.The 2300 weighs just under 9 pounds.Husqvarna makes a slightly heavier model.
Depends on the Model of stihl trimmer you have. The 45 home trimmer from stihl takes .080 but from that model to the larger more expensive ones the string size gets larger.
SRM2301
The #1 best selling hedge trimmer available at Home Depot is a Black and Decker 24" Hedge Hog trimmer, model HH2450, for $69.97. If you order online you get free shipping!
A light and cordless hedge trimmer would be best for a woman of petite stature. The Earthwise 20-inch cordless hedge trimmer would work great in this situation.
0.020 in or 0.50mm
The manual can be found at the link below.
This model # shows as a black&Decker cordless string trimmer.
The proper air gap clearance for that model is 0.020"
Fuel mixture is 16:1
yes 2 cycle engine
http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Grass-trimmer-weed-wacker-Parts/Model-536773510/0247/1503820?searchedModel=536.7735.100&blt=