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Bosch GWS8-45 4-1/2 In. Angle Grinder vs Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder

Updated July 2026 — Bosch GWS8-45 4-1/2 In. Angle Grinder leads on price and weight.

The Bosch GWS8-45 offers better value and performance for budget-conscious users, while the Milwaukee 2888-20 provides advanced features for those needing versatility.

Why Bosch GWS8-45 4-1/2 In. Angle Grinder is better

Price

Bosch is $62.08 cheaper

Power

Bosch has higher RPM at 11,000

Weight

Bosch is lighter at 4.2 lbs

Why Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder is better

Variable Speed

Milwaukee offers 5 speed settings

Cordless

Milwaukee is a cordless model

Safety Brake

Milwaukee stops wheel in 2 seconds

Overall score

Bosch GWS8-45 4-1/2 In. Angle Grinder
85
Milwaukee 2888-20 18V Cordless 4.5"/5" Grinder
75

Specifications

SpecBosch GWS8-45 4-1/2 In. Angle GrinderMilwaukee 2888-20 18V Cordless 4.5"/5" Grinder
Motor Power7.5 Amp18V
Max RPM11,0008,500
Variable SpeedNoYes
Weight4.2 lbsN/A
Safety FeaturesBurst-ProtectionBrake

Dimension comparison

Bosch GWS8-45 4-1/2 In. Angle GrinderMilwaukee 2888-20 18V Cordless 4.5"/5" Grinder

Overview of the Bosch GWS8-45 and Milwaukee 2888-20

The Bosch GWS8-45 is priced at $79.00, making it about 44% cheaper than the Milwaukee 2888-20, which costs $141.08. This significant price difference is a crucial factor for buyers looking for a quality angle grinder on a budget. Both products are designed for grinding tasks but cater to different user needs and preferences.

Power and Performance

The Bosch GWS8-45 features a powerful 7.5 amp motor that delivers an impressive 11,000 no-load RPM, ensuring efficient performance for a variety of grinding tasks. In contrast, the Milwaukee 2888-20 offers a maximum speed of 8,500 RPM, which is lower than that of the Bosch model. However, the Milwaukee grinder includes variable speed settings that allow users to choose from five different speeds, ranging from 3,500 RPM to 8,500 RPM, providing greater control for specific applications.

Design and Ergonomics

The Bosch GWS8-45 stands out with its slim-grip design that enhances user comfort during extended use. Weighing just 4.2 lbs, it is relatively lightweight, making it easier to handle. On the other hand, the Milwaukee 2888-20, although cordless, may be bulkier due to its battery requirements. The Bosch model includes a two-position side handle, which adds to its versatility and user control. While both grinders are designed for durability, the ergonomic focus of the Bosch may appeal more to users prioritizing comfort.

Convenience Features

When it comes to convenience, the Bosch GWS8-45 has several features designed to enhance usability. It includes a burst-protection guard that allows for quick adjustments and a Service Minder brush system that shuts off the tool when maintenance is needed, preventing potential damage. The Milwaukee 2888-20 also offers useful features such as a paddle switch and tool-free guard adjustment, which makes accessory changes straightforward. However, it lacks the preventative maintenance indicators that Bosch provides.

Durability and Maintenance

Durability is a key consideration for angle grinders, and both models exhibit traits aimed at longevity. The Bosch GWS8-45 is equipped with durable carbon brushes that extend the tool's life, ensuring it remains a reliable option over time. Milwaukee's model also emphasizes durability, but it is essential to note that being a cordless tool, the battery's lifespan is a significant factor. The Bosch's maintenance features may appeal to users who prefer a tool that provides clear indicators for upkeep.

Safety Features

Safety is paramount in power tools, and both the Bosch GWS8-45 and Milwaukee 2888-20 incorporate safety features. The Bosch model includes a burst-protection guard that allows users to make adjustments quickly while ensuring their safety during operation. It also has a robust design that directs air flow to keep dust away from vital components. The Milwaukee grinder features a brake that stops the wheel in two seconds or less, enhancing user safety. Both tools provide adequate safety mechanisms, though their approaches differ.

Price Comparison

The price difference between the Bosch GWS8-45 and the Milwaukee 2888-20 is significant, with the Bosch model costing $79.00 compared to the Milwaukee's $141.08. This translates to a price difference of about $62.08, making the Bosch grinder about 44% less expensive. For budget-conscious consumers, this price advantage is substantial. However, the Milwaukee grinder's additional features and variable speed settings may justify its higher price for some users.

Which should you buy?

Choosing between the Bosch GWS8-45 and the Milwaukee 2888-20 ultimately depends on your specific needs. If you prioritize a lightweight, budget-friendly tool with high RPM and excellent ergonomics, the Bosch GWS8-45 is the better choice at $79.00. However, if you require a cordless option with variable speed settings and advanced safety features, the Milwaukee 2888-20, despite its higher price of $141.08, may be worth the investment. Both tools are solid choices, but your decision should align with your intended use and personal preferences.