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Makita 9557NB 4-1/2" Angle Grinder vs PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with

Updated July 2026 — Makita 9557NB 4-1/2" Angle Grinder wins on durability and safety, PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with wins on price and accessories.

The Makita 9557NB offers superior durability and performance, while the PROMAKER provides excellent value for budget-conscious buyers.

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

Power

Makita has a more robust motor at 7.5 AMP.

Durability

Makita features advanced construction for longer lifespan.

Brand Reputation

Makita is a well-established brand known for quality.

Why PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with is better

Price

PROMAKER is significantly cheaper at $34.99.

Accessories

PROMAKER includes a comprehensive accessory kit.

Weight

PROMAKER is lighter, enhancing portability.

Overall score

Makita 9557NB 4-1/2" Angle Grinder
85
PROMAKER 9 Amp Angle Grinder, 4-1/2 in. with
70

Specifications

SpecMakita 9557NB 4-1/2" Angle GrinderPROMAKER 9 Amp Angle Grinder, 4-1/2 in. with
Motor Power7.5 AMP9 AMP
Max RPM1100012000
Weight4.5 lbs5.5 lbs
WarrantyN/A2 years
Included Discs15

Dimension comparison

Makita 9557NB 4-1/2" Angle GrinderPROMAKER 9 Amp Angle Grinder, 4-1/2 in. with

Price Comparison

The PROMAKER 9 Amp Angle Grinder is significantly cheaper than the Makita 9557NB, priced at $34.99 compared to $84.01. This makes the PROMAKER about 58% less expensive. If budget is a primary concern, the PROMAKER offers a more accessible entry point into the world of angle grinders. However, it's important to weigh the price against the features each product offers, as a lower price may come with trade-offs in performance or durability.

Power and Performance

In terms of power, the Makita 9557NB features a robust 7.5 AMP motor that delivers an impressive 11,000 RPM. Meanwhile, the PROMAKER also boasts a 9 Amp motor, slightly higher than the Makita, which allows it to reach a maximum speed of 12,000 RPM. This means that while the Makita offers solid performance for general use, the PROMAKER may provide a bit more power for heavy-duty cutting and grinding tasks. Therefore, if you're looking for raw power, the PROMAKER could be the better option.

Design and Usability

The Makita 9557NB is designed with a compact structure, weighing only 4.5 lbs, which enhances its portability and ease of use. Its AC/DC switch allows for flexibility with power sources, making it a versatile choice for various applications. In contrast, the PROMAKER features an innovative paddle switch system that stops instantly upon release, enhancing safety and control. This design is particularly beneficial for users who prioritize precision and safety in their work. Thus, while both grinders are user-friendly, they cater to slightly different preferences in handling and operation.

Included Accessories

When it comes to included accessories, the PROMAKER stands out by offering a comprehensive kit right out of the box. This includes a grinding wheel, four flap discs, and two extra carbon brushes, which enhance the tool's longevity. The Makita 9557NB, however, comes with a grinding wheel and essential components like a lock nut and side handle, but lacks additional accessories. If having a complete starter kit is important to you, the PROMAKER offers more immediate value.

Safety Features

Safety is a crucial aspect when using power tools, and both grinders feature distinct safety elements. The PROMAKER includes a next-generation paddle switch that prevents accidental starts, which is crucial for user safety. It also has a tool-free adjustable guard for safer operation. The Makita 9557NB, on the other hand, is equipped with a lock-on/off feature and protective varnish that seals the armature from dust and debris, extending tool life. While both grinders provide safety measures, the PROMAKER's paddle switch may offer greater peace of mind during operation.

Durability and Build Quality

The Makita 9557NB is built with all ball bearing design and metal gear housing, which contribute to its durability over time. Its labyrinth construction protects internal components from contamination, ensuring a longer lifespan. The PROMAKER, while powerful, does not specify similar advanced construction features, which raises questions about its long-term durability. If durability and build quality are your top priorities, the Makita may have the edge due to its proven construction techniques.

Brand Reputation and Sales Rank

Brand reputation can play a significant role in purchasing decisions. Makita is a well-established brand known for its high-quality tools, and the 9557NB has a sales rank of 74,761. In contrast, the PROMAKER holds a better sales rank at 35,536, indicating a growing popularity. However, Makita's long-standing reputation in the industry often translates to trust and reliability, making it a favored choice among professionals. Ultimately, the choice may come down to whether you prefer a trusted legacy brand or a rising contender in the market.

Which should you buy?

Deciding between the Makita 9557NB and the PROMAKER 9 Amp Angle Grinder largely depends on your specific needs and budget. If you prioritize performance and are willing to invest more for durability, the Makita is a solid choice with its powerful motor and robust construction. However, if you are looking for a budget-friendly option that still offers good power and a comprehensive accessory kit, the PROMAKER is an excellent value at $34.99. Consider how you plan to use the grinder and what features are most important to you before making your decision.