Best Cordless Angle Grinders 2026: 20V & 60V Picks

The Makita XAG04Z is an 18V LXT brushless angle grinder that delivers corded-level cutting and grinding performance through a brushless motor that extends runtime and requires no brush replacements over the tool's lifespan. The bare-tool format assumes you already own Makita 18V LXT batteries and charger. At $165, it's a premium investment in the Makita platform. The 4.7-star rating reflects the reliability of the LXT ecosystem. Best for metalworkers, tile installers, and fabricators already in the Makita platform who want a cordless grinder with no compromise on power.

The Makita XAG03Z is the entry point into the Makita LXT brushless angle grinder lineup — brushless motor construction improves efficiency and extends tool life compared to brushed alternatives at the same price tier. LXT battery compatibility shares cells with Makita drills, saws, and other tools already in the workshop, avoiding a separate battery investment. At $187.00 it is the lower-cost Makita brushless option on this page versus the XAG20Z at $270.06. The tradeoff versus newer Makita models is the absence of automatic speed change, which adjusts RPM under load to maintain cutting performance when the disc engages harder material. For standard grinding and cut-off work where consistent speed under load is not critical, the XAG03Z delivers solid brushless performance at a lower entry cost for existing LXT users.

The Makita XAG20Z's defining upgrade over other grinders on this page is the paddle switch safety design. A paddle switch requires active hand grip to maintain power — releasing the paddle during a kickback event, drop, or loss of control immediately cuts power. Side-switch designs stay on until manually toggled off, which creates risk if grip is lost during an aggressive cut. For a tool with significant kickback injury potential, this safety distinction matters. The automatic speed change feature monitors load resistance and adjusts RPM to maintain consistent cutting performance — the motor compensates when the disc engages harder material rather than bogging down, producing more consistent results in variable-density materials like hardwood and structural steel. At 4.8 lbs it is lighter than heavier competing models, reducing fatigue during extended overhead or vertical grinding work. At $270.06, the XAG20Z costs $83 more than the XAG03Z at $187.00 and $164 more than the DEWALT DWE402 corded at $106.00. Versus the XAG03Z, the $83 premium buys paddle switch safety and automatic speed change — both meaningful upgrades. Versus the DEWALT corded model, the XAG20Z costs $164 more for cordless freedom. For beginners and users who prioritize safe operation of a tool with real kickback risk, the XAG20Z's paddle switch is the strongest safety argument in this comparison and worth the premium over the lower-cost Makita.

The DEWALT DWE402's 11-amp corded motor delivers consistent 11,000 RPM power without battery management — for sustained metalworking sessions, a corded grinder runs indefinitely while cordless tools require battery rotations. The paddle switch cuts power instantly when released — the same safety design found in the Makita XAG20Z at $270.06, but in a $106 corded package. The dust ejection system expels particles away from the motor windings, addressing the primary failure mode of angle grinders used on concrete and masonry where fine abrasive dust enters the motor over time. Anti-vibration side handle reduces operator fatigue during extended grinding runs on steel and concrete. At $106.00 it is $81 less than the Makita XAG03Z and $164 less than the XAG20Z — the lowest-cost paddle-switch grinder in this comparison and the right choice for shop users with outlet access who do not need cordless freedom.