A.P.P. Enterprises supplies Armatures for 4 Inch Straight Grinder. A.P.P. Enterprises is an ISO 9001:2000 registered organisation. A.P.P. Enterprises manufactures Power Tools like Impact Drill, Stone Cutter and other power tools. The Armatures for 4 Inch Straight Grinder is suitable for Angle Grinder, Drill Machine, Stone Cutter, Router etc. An armature generally refers to one of the two principal electrical components of an electromechanical machine- a motor or generator, but may also mean the pole piece of a permanent magnet or electromagnet, or the moving iron part of a solenoid or relay. The other component is the field winding or field magnet.