Makita Usa Inc 9557NB 4-1/2 Inch Angle Grinder 7.5A

Product Description

The MAKITA USA INC 9557NB is a 4-1/2 inch angle grinder designed for heavy professional grinding applications. Powered by a 7.5-amp AC/DC motor, it delivers consistent performance across both AC and DC power sources, making it adaptable to job site conditions. The tool ships complete with a 4-1/2 inch grinding wheel, a side handle, and a wheel guard. The spindle lock simplifies wheel changes without extra tooling. A small-circumference barrel grip reduces operator fatigue during extended use. Licensed tradespeople in construction, fabrication, and mechanical trades rely on this grinder for cutting, grinding, and surface prep work.

The 9557NB fits into workflows where a compact, corded angle grinder is needed for demanding material removal or surface finishing. The lock-on feature supports prolonged continuous operation without sustained trigger pressure, which is practical on larger grinding runs. The side handle mounts on either side of the tool body, accommodating both left- and right-handed operators. The switch is located on the side of the motor housing for accessible, consistent placement during use. This grinder suits residential and commercial job sites where a reliable 4-1/2 inch corded unit is the standard choice.

Key Features

• 7.5-amp AC/DC motor rated for heavy professional grinding
• Spindle lock enables fast wheel swaps without additional tools
• Side handle installs on either side of the tool for left- or right-handed use
• Lock-on feature supports continuous operation during extended grinding runs
• Small-circumference barrel grip improves control and reduces fatigue
• Includes 4-1/2 inch grinding wheel, side handle, and wheel guard

Compatibility

Designed as a standard 4-1/2 inch corded angle grinder compatible with 4-1/2 inch grinding wheels and accessories using the appropriate arbor size for this tool class.

Installation Notes

Installation and wheel changes should be performed by qualified tradespeople following ANSI B7.1 safety standards for abrasive wheel use. Always disconnect the tool from the power source before changing wheels or guards. Confirm the wheel guard is properly seated and secured before operating the grinder. Inspect the grinding wheel for cracks or damage before each use and never exceed the maximum rated RPM printed on the wheel.