The 'saw tooth' blade that comes with the Brush Cutter is fine for coarse grass, weeds, vines and VERY small saplings (1/2") but not much else.
'Chain Saw' type blades cut the quickest but be prepared to sharpen them often....and ONLY use good quality blades such as Forester or Beaver Blade. Cheap Chinese versions will literally come apart with not much use and you don't want that happening at the speed they rotate.
Carbide tipped blades (I have found Renegade 9" to be the best value and best cutting) last a long time and take a lot punishment. Use carbide if your work will have you cutting close to the ground and hitting dirt is unavoidable.
'Chain Saw' type blades cut the quickest but be prepared to sharpen them often....and ONLY use good quality blades such as Forester or Beaver Blade. Cheap Chinese versions will literally come apart with not much use and you don't want that happening at the speed they rotate.
Carbide tipped blades (I have found Renegade 9" to be the best value and best cutting) last a long time and take a lot punishment. Use carbide if your work will have you cutting close to the ground and hitting dirt is unavoidable.