Outdoor tool and blade

An outdoor tool comprising:

• a power head comprising a power head housing, a power source, a motor powered by the power source, and a drive shaft extending from the motor and rotatably driven by the motor, wherein the power source and the motor are disposed within the power head housing and the drive shaft extends from the power head housing;
• and
• a tool attachment comprising a blade, a guard disposed on one side of the blade, and a wheel, wherein the drive shaft is coupled to the blade and is configured to drive rotation of the blade about a rotational axis of the blade;
• wherein the blade comprises a body having a first side and a second side opposite the first side, the first side and the second side both extending from a first end to a second end of the body, a first edge extending along a length of the body between the first side and the second side from the first end to the second end, and a second edge extending along a length of the body between the first side and the second side from the first end to the second end,
• the body comprising a first arm, a second arm, and a planar portion between the first arm and the second arm,
• wherein the rotational axis of the blade extends through the planar portion,
• the body further comprising a hole surrounding the rotational axis,
• wherein each of the first arm and the second arm comprises at least one bend.