Hardin 4" & 5" Variable Speed Wet Polisher and Grinder – 800W 120V, 1000–4000 RPM, Water Feed System with Brass Valve, GFCI Cord for Granite, Marble, Stone, and Concrete Fabrication

The Hardin WP800 4" Variable Speed Wet Polisher is built for precision stone and concrete finishing, trusted by fabricators and installers. Its 800W, 120V motor delivers steady torque across a variable speed range of 1,000–4,000 RPM for smooth transitions from grinding to polishing. The WP800 handles fast stock removal and shaping with diamond grinding wheels, profile wheels, finger bits, and hole saws. A dedicated water feed system with brass valve and reinforced line provides reliable cooling and extends pad life, while a 20 ft GFCI power cord protects against electrical hazards in wet environments. Interchangeable side and top handles give better control on both flat surfaces and vertical edges. With compatibility for 3", 4", and 5" polishing pads, reinforced housing, and a sealed motor, the WP800 is a durable workhorse for shop and field professionals.

• Maintains precision and control with a variable speed range of 1,000–4,000 RPM that provides smooth transitions from grinding to fine polishing.
• Delivers steady torque with a powerful 800W, 120V motor, preventing stalling when working granite, marble, or concrete surfaces.
• Supports fast stock removal and shaping when used with diamond grinding wheels, zero tolerance wheels, profile wheels, finger bits, and hole saws.
• Extends tool life and enhances cut quality using a dedicated water feed system with brass valve and reinforced supply line for reliable flow control.
• Enhances jobsite safety with an integrated 20 ft GFCI power cord that protects against electrical hazards in wet environments.
• Fits the most common 3”, 4”, and 5" polishing pads and diamond tools with a 5/8"-11 threaded spindle.
• Provides better control on flat surfaces and vertical edges with interchangeable side and top handles.
• Built for tough shop and field use with a reinforced housing and sealed motor that resists dust and moisture.
• Specifications: Rated Voltage: 120V, 60Hz | Input Power: 800W | No Load Speed: 1,000-4,000 RPM | Max Accessory Compatibility: 5" +