HiKOKI GP18DB 18V Brushless Die Grinder Review & Price Comparison

The HiKOKI GP18DB is an 18V cordless brushless straight grinder designed for grinding, deburring, polishing and precision metal finishing work. With a slim body, paddle switch and high no-load speed, it is a professional option for users who need cordless control in workshops and jobsite environments.

Product Specifications

Brand	HiKOKI
Model	GP18DB
Tool Type	Die Grinder / Straight Grinder
Voltage	18V
Motor	Brushless
Collet Diameter	6 mm
Spindle Neck Diameter	40 mm
No-Load Speed	7,000–29,000 min⁻¹

Price Comparison

Store	Price	Link
Amazon DE	€274.44	View Deal

Detailed Review

The HiKOKI GP18DB is made for detailed grinding and finishing work where a standard angle grinder is too large or too aggressive. Its straight grinder design gives better access to narrow areas, making it useful for metal fabrication, automotive repair, welding clean-up and precision workshop tasks.

The variable high-speed range of 7,000–29,000 min⁻¹ makes it suitable for different accessories and materials. Lower speeds can help with controlled finishing work, while higher speeds are useful for faster material removal and polishing applications.

The brushless motor improves efficiency and reduces maintenance compared with brushed alternatives. The paddle switch also gives better control, especially when working in awkward positions.

Who Is It Best For?

This die grinder is best suited for metalworkers, mechanics, fabricators, welders and professional users who need a cordless straight grinder for detailed finishing, deburring and polishing work.

Verdict

The HiKOKI GP18DB is a strong cordless die grinder for professional precision work. It is more expensive than some basic models, but its brushless motor, wide speed range and cordless design make it a serious option for demanding users.