The Makita XAG03Z is an 18V LXT brushless 4-1/2 in. cut-off/angle grinder delivering 8,500 no-load RPM for fast, efficient grinding, cutting, and sanding of tile, concrete, pipe, and conduit. The Makita-built brushless motor runs cooler and more efficiently for longer tool life compared to brushed alternatives. Automatic Speed Change technology continuously monitors and adjusts motor speed under load for optimal performance. Replaced by the XAG04Z; tool only — battery and charger sold separately.
Is the XAG03Z still available or has it been discontinued?
The XAG03Z has been discontinued by Makita and replaced by the XAG04Z, which adds 5 in. disc compatibility and minor refinements. If you need a new unit, the XAG04Z is the direct drop-in successor and uses the same 18V LXT battery platform.
What batteries are compatible with the XAG03Z?
All Makita 18V LXT slide-style batteries with the Star symbol work with the XAG03Z. The BL1850B (5.0Ah) and BL1830B (3.0Ah) are common choices. Higher-Ah packs extend run time without changing grinding performance.
Can I use a 5 in. grinding disc on the XAG03Z?
No. The XAG03Z is rated for 4-1/2 in. discs only. If you need 5 in. compatibility, consider the XAG04Z or XAG09Z, both of which accept 4-1/2 in. and 5 in. wheels.
Does the XAG03Z have an electric brake?
No, the XAG03Z does not include an electric brake. The wheel coasts to a stop after releasing the trigger. Models like the XAG09Z and XAG11Z add an electric brake that stops the wheel in 2 seconds or less for improved safety.
What is the spindle size for disc changes on the XAG03Z?
The spindle uses a standard 5/8 in.-11 thread, the industry-standard size for angle grinder accessories. Grinding wheels, cut-off wheels, flap discs, and wire cup brushes with 5/8 in.-11 arbors are all compatible.
# Makita 18V LXT Brushless 4-1/2 in. Cut-Off/Angle Grinder (Tool Only) **Model:** `XAG03Z` **Brand:** Makita **Category:** Angle Grinder > The Makita XAG03Z is an 18V LXT brushless 4-1/2 in. cut-off/angle grinder delivering 8,500 no-load RPM for fast, efficient grinding, cutting, and sanding of tile, concrete, pipe, and conduit. The Makita-built brushless motor runs cooler and more efficiently for longer tool life compared to brushed alternatives. Automatic Speed Change technology continuously monitors and adjusts motor speed under load for optimal performance. Replaced by the XAG04Z; tool only — battery and charger sold separately. ## Specifications | Attribute | Value | |---|---| | Product Type | Angle Grinder | | Voltage | 18 | | Platform | LXT | | Disc Diameter In | 4.5 | | No Load Rpm | 8,500 | | Spindle Thread | 5/8 in.-11 | | Brushless | Yes | | Tool Only | Yes | | Battery Included | No | | Charger Included | No | | Weight (lbs) | 5.5 | | Warranty | 3-year limited | ## What's Included - angle grinder - wheel guard - side handle Source: https://www.jaspecs.com/makita/angle-grinder/xag03z-makita-18v-lxt-brushless-4-1-2-in-angle-grinder-tool-only/