vsversusfinder

Makita 9557NB 4-1/2" Angle Grinder vs RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder

Updated July 2026 — Makita 9557NB 4-1/2" Angle Grinder wins on price and rpm, RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder wins on handle and power.

The Makita 9557NB offers superior power and durability, making it ideal for professional use, while the RYOBI PCL445B is a budget-friendly option for casual users.

Why Makita 9557NB 4-1/2" Angle Grinder is better

Power

Makita has a 7.5 AMP motor with 11,000 RPM

Durability

Makita features protective varnish and labyrinth construction

Weight

Makita is lighter at 4.5 lbs

Why RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder is better

Price

RYOBI is priced at $54.00

Cordless

RYOBI is a cordless tool, offering more flexibility

Control

RYOBI has a 3-position side handle for better control

Overall score

Makita 9557NB 4-1/2" Angle Grinder
85
RYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder
70

Specifications

SpecMakita 9557NB 4-1/2" Angle GrinderRYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder
Motor7.5 AMP18V
Max RPM11,0009,000
Switch TypeAC/DCStandard
Weight4.5 lbsNot Specified
DurabilityHighModerate

Dimension comparison

Makita 9557NB 4-1/2" Angle GrinderRYOBI PCL445B ONE+ 18V Cordless 4-1/2 in. Angle Grinder

Overview of the Makita 9557NB and RYOBI PCL445B

When comparing the Makita 9557NB and the RYOBI PCL445B, both are 4-1/2 inch angle grinders, but they cater to different needs and preferences. The Makita 9557NB is priced at $84.01, while the RYOBI PCL445B is notably cheaper at $54.00, which makes it about 36% less expensive. This price difference may influence your buying decision based on budget constraints and the intended use of the tool.

Design and Build Quality

The design and build quality of each grinder reflect their brand philosophies. The Makita 9557NB features a compact and lightweight design with a small 2-1/2 inch diameter barrel, weighing only 4.5 lbs. This makes it comfortable for extended use. In contrast, the RYOBI PCL445B is designed as a bare tool, meaning that it is sold without a battery or charger. It incorporates a die cast metal gear case which adds durability, although specifics about weight are not provided. The overall robustness of both tools is commendable but may appeal differently based on user priorities, such as portability versus durability.

Performance Specifications

The performance specifications of the Makita 9557NB and RYOBI PCL445B differ significantly. The Makita boasts a powerful 7.5 AMP motor delivering up to 11,000 RPM, making it suitable for heavier tasks and providing high output power. Conversely, the RYOBI PCL445B features a slightly less powerful motor with a maximum speed of 9,000 RPM. While the RYOBI is capable of rapid material removal, the Makita's higher RPM could make it more effective for demanding applications. This distinction is crucial for professionals or serious DIYers who prioritize power and efficiency.

Versatility and Usage

In terms of versatility, both grinders offer unique features. The Makita 9557NB includes an AC/DC switch, enabling it to be used with alternative power sources, which is particularly advantageous for users in various environments. Moreover, its protective varnish seals against dust and debris, extending the tool's life. On the other hand, the RYOBI PCL445B includes a 3-position side handle for maximum control, which enhances usability during different grinding tasks. However, the lack of a battery and charger means that the RYOBI is less versatile in terms of power options unless you are already invested in the RYOBI ONE+ system.

Ease of Use

Ease of use is another critical factor where these two grinders shine in different areas. The Makita 9557NB features a lock-on/off switch, making it easier to operate continuously without fatigue. Its design allows for a spindle lock that facilitates quick wheel changes, which is essential for efficiency. In contrast, the RYOBI PCL445B also boasts a spindle lock for quick accessory changes, complemented by tool-free adjustable guards and on-board wrench storage. While both tools prioritize user convenience, the Makita may provide a smoother experience for those who frequently switch between tasks.

Price Comparison

When it comes to pricing, the RYOBI PCL445B offers a significant advantage, priced at $54.00 compared to the Makita 9557NB's $84.01. This makes the RYOBI about 36% cheaper, which can be a decisive factor for budget-conscious buyers. However, the price difference is indicative of the performance and features offered by each grinder. While the RYOBI may appeal to casual users or those with lighter tasks, professionals might find the investment in the Makita worthwhile due to its superior power and durability.

Sales Rank and Market Position

The sales rank can often indicate consumer preference and market position. The Makita 9557NB has a sales rank of 74,761, while the RYOBI PCL445B ranks significantly higher at 18,870, suggesting that it is more popular among buyers. This could reflect the RYOBI's appeal as a cost-effective option in the cordless tool market, particularly for those who may already own RYOBI batteries. However, a higher sales rank does not necessarily equate to quality, as the Makita is known for its durability and performance.

Which should you buy?

Deciding between the Makita 9557NB and the RYOBI PCL445B ultimately depends on your specific needs and budget. If you are looking for a powerful, durable tool for professional-grade tasks, the Makita 9557NB is the better option, despite its higher price. On the other hand, if you're seeking a budget-friendly, versatile grinder for less demanding projects and are already part of the RYOBI ONE+ ecosystem, then the RYOBI PCL445B is a smart choice. Consider your usage frequency, required power, and existing tool compatibility to make the best decision for your workshop.