what to use to cut fiberglass

[spareparts]

I've tried everything know to man to cut fiberglass with exception of a Fein Tool(i'm too scared to try one with $80 blades). Best thing I've found is my Bosch jig saw, look for a fine tooth blade with the blade tip pointing down, they keep it from chipping out. Go ahead and buy a pack of blades, keep the speed down and when it stops cutting, replace the blade and go slower