9564CV 4-1/2" High-Power Angle Grinder
Last verified by the Lifetime Picks Editorial Team
Why we picked it
Patented SJS clutch disengages on kickback (operator safety)
Makita's 9564CV is the corded 4 1/2" angle grinder professional welders, fabricators, and metalworkers use as their daily driver, the 'SJS' (super joint system) is a patented clutch that disengages the wheel from the motor when it binds, preventing kickback that can launch the tool out of your hand. The 10A motor pulls real current through grinding, cutting, and wire wheeling without bogging down. r/Welding, r/Metalworking, and r/Construction all surface the Makita 9564CV as the 4.5" grinder you buy if you're going to use it every day; the variable speed dial (2800-10,500 RPM) lets you match the speed to the wheel type (slower for wire wheels, faster for cutoff discs). The teal and black Makita case has stocked replacement brushes and bearings for 20+ years.
* As an Amazon Associate, we earn from qualifying purchases. Prices on Amazon update in real time; the figure shown is from our last verified refresh.
Community & Review Summary
494 Amazon reviews
r/BuyItForLife satisfaction
Total mentions (0 positive)
Amazon category rank
Price History
We began tracking this price on May 12, 2026. The chart fills in as more prices are recorded; see CamelCamelCamel below for older history.
Pros & Cons from Reviews
Pros
- +Patented SJS clutch disengages on kickback (operator safety)
- +10A motor pulls real current - no bog under load
- +Variable speed 2800-10,500 RPM for different wheel types
- +Made by Makita with worldwide replacement parts support
- +Used by professional welders and fabricators
- +Standard 5/8-11 spindle accepts standard 4.5" wheels
Cons
- -Corded - needs a 14-gauge extension at minimum for any distance
- -Heavier than competing 4.5" grinders due to the SJS mechanism
- -Variable-speed dial is small and gets clogged with metal dust
- -Standard handle (no anti-vibration grip on this model)