DESC: Hitachi’s G12SA3 4-1/2-inch grinder is ideal for the professional who needs a tool that will deliver when deburring die cast products, finishing metal surfaces, grinding welds and torch cut surfaces and grooving and cutting concrete. It delivers a powerful 8 Amps with 910 Watts of input power and a class leading 1,900 Watts of output power to grind through the toughest applications with ease. Due to an improved cooling mechanism and the high powered motor, this grinder achieves the highest overload durability in its class. This translates into greater working efficiency and a higher resistance to burnout. Improved dust protection for the motor resists wear on the armature and field coils for longer tool life under the usual harsh conditions. The on/off switch is center mounted on top of the grinder and allows the user to comfortably operate the tool whether right or left handed.