DEWALT Angle Grinder 4.5 in 11 Amp (DWE402) with Diamond Blade

Our review of the DEWALT Angle Grinder 4.5 in 11 Amp (DWE402) with included diamond blade finds it best suited for trade professionals and serious DIYers who need sustained power and durability for masonry, tile, and metal cutting. The single biggest reason to buy is the combination of a next-generation 11,000 RPM motor and an industrial-grade continuous rim diamond blade that together deliver long runtime and consistent cutting performance on stone and block. The review focuses on real-world use, durability features, and the grinder's suitability for extended periods of work.

Key Features

• 11 Amp motor: The next-generation 11,000 RPM AC/DC motor delivers a high power-to-weight ratio for demanding cutting and grinding tasks without undue bulk.
• Dust Ejection System: Built-in dust ejection actively removes particles to protect internal components and extend tool life under heavy use.
• Extended brush life: Oversized brushes provide roughly two times the brush life compared with the previous model, reducing downtime for maintenance.
• One-Touch Guard and Quick-Change: The One-Touch Guard rotates 360 degrees and the Quick-Change Wheel Release simplifies wheel swaps to keep jobsite productivity high.
• Diamond blade performance: The included continuous rim diamond blade has large diamond segments and a turbo design that excels at dry or wet cutting through brick, block, and tile.
• Durable gearing: A large spiral bevel gear offers long transmission life for sustained heavy-duty applications.

Who It's For

The DEWALT DWE402 and DW4701 blade combination is aimed at masons, tile installers, contractors, and serious home remodelers who need a compact 4-1/2 in grinder that still delivers professional-level cutting power and long component life. It excels where repeated cuts through masonry, stone, and tile are required and where tool longevity matters.

Less suitable users include those needing ultra-light trim work for long overhead use or hobbyists who will rarely cut masonry; in those cases a lighter, lower-power grinder or specialized tile saw might be a better fit. Also, users who require larger diameter cutting capacity should consider larger grinders and blades.

Pros & Cons

Pros

• Powerful 11 Amp motor provides steady performance for heavy cuts and extended use.
• Dust Ejection System and oversized brushes improve durability and reduce maintenance frequency.
• Included continuous rim diamond blade offers excellent life and clean cuts in brick, block, and tile.
• One-Touch Guard and Quick-Change Wheel Release boost on-site convenience and safety.

Cons

• Weight is mixed in user feedback; some may find it heavier than the smallest 4-1/2 in grinders for prolonged overhead work.
• Designed for 4-1/2 in capacity only, so users needing larger cuts must look elsewhere.

Specifications

Tool model	DWE402 4-1/2 in Angle Grinder
Motor	11 Amp, 11,000 RPM AC/DC
Blade	DW4701 4-1/2 in continuous rim diamond blade, 7/8 in arbor
Cutting type	Dry or wet cutting for masonry, tile, block
Guard	One-Touch 360-degree adjustable guard
Durability features	Dust Ejection System, oversized brushes, large spiral bevel gear

Our Verdict

The DEWALT 4.5 in 11 Amp angle grinder with continuous rim diamond blade is a strong choice for professionals and serious DIYers who need durable, high-power cutting on masonry and tile. Its protective dust system, long-life brushes, and a robust motor make it good value for jobs that demand extended runtime and reliable performance.

Frequently Asked Questions

Can the blade be used wet as well as dry?
The included DW4701 continuous rim diamond blade is rated for both dry and wet cutting on masonry and tile.

Is this grinder suitable for extended use on a jobsite?
Yes, the 11 Amp motor, dust ejection system, and oversized brushes are designed to withstand extended, repeated use in trade environments.

What arbor size does the blade use?
The diamond blade uses a 7/8 in arbor and fits the 4-1/2 in grinder configuration.