An A wedges, usually called wither an attack wedge or approach wedge has around 50-52 degrees of loft, whereas a pitching wedge has about 46-48 degrees of loft. The attack wedge and pitching wedge...
The main difference is loft a pitching wedge has about 46-48 degrees of loft and a sandwedge has about 54-56 degrees of loft. The pitching wedge therefore can be hit farther.