Makita has come out a couple of new 18V cordless angle grinders that were powered by brushless motors.
Milwaukee’s brushless grinder came out in 2013, and I’m pretty sure I saw an AEG brushless grinder on the market as well. Still, Makita has been on a roll lately, with new brushless circular saw, brushless jigsaw, and brushless impact wrench.
The new grinder will be available – at least internationally (at first?) – in three sizes: 100mm (4″), 115mm (4-1/2″), and 125mm (5″).
Makita says that the new grinder will deliver excellent performance as powerful as an AC model. Brushless motors are more efficient than brushed motors (read more about this in Brushless Motors 101), allowing for a balance between greater runtime and corded-like performance.
The new grinders have an ergonomic grip design with rubber overmolding, a slide switch, built-in battery fuel gauge, an automatic speed control (Makita says this is an industry-first), an integrated dust screen, and a soft start motor.
There is also an anti-restart function that prevents the tool from automatically starting if a battery is attached while the slide switch is in the on position.
The automatic speed control is also particularly interesting, as it adjusts the speed according to load condition. This allows the tool to adjust between high speed and high torque applications to deliver maximum performance.
- DGA404: 4″
- DGA454/XAG03: 4-1/2″
- DGA504: 5″
No-load speed is 8,500 RPM for all models.
Right now, all three Makita 18V brushless angle grinder models feature a slide switch. There doesn’t seem to be any paddle switch version, at least not one I could find information on.
USA release is uncertain, but the 4-1/2″ and 5″ grinders are already listed in Makita Canada’s online catalog. If I had to guess, I would say that they probably are planned for release in the USA, but some tools (such as Makita’s heated jacket) have been released in Canada but not here.
The automatic speed control, anti-restart function, and lower maintenance brushless motor definitely help the new models stand out from the competition.
Buy Now(4-1/2″ bare tool via Amazon)