Studio shot of the Makita XAG04Z cordless angle grinder showing the side handle, grinding wheel, guard, and battery receiver at the rear base.
A hand holding the Makita cordless angle grinder by the barrel grip to demonstrate the ergonomic, slim body design.
Side profile of the Makita angle grinder with a dust collection guard and hose attachment connected for concrete surfacing applications.
Close-up detail of the top of the grinder housing showing the black slide switch with lock-on functionality.
Close-up of the battery receiver area highlighting the mesh intake covers designed to prevent debris from entering the motor.
Close-up of the grinder's barrel grip showing the rubberized soft grip and teal accent panel for operator comfort.
A worker wearing heavy gloves uses the Makita cordless grinder to grind the edge of a metal plate, creating sparks.
Close-up of the angle grinder in action, smoothing a metal edge with a grinding wheel while held by gloved hands.
Side view graphic of the angle grinder with a dimension line indicating an overall length of 14-1/4 inches.
Technical cutaway illustration of the internal brushless motor showing the copper windings and rotor shaft.
MAKITA X-LOCK ANGLE GRINDERS (XAG25, XAG26, GA4570) promotional video
Studio shot of the Makita XAG04Z cordless angle grinder showing the side handle, grinding wheel, guard, and battery receiver at the rear base.
A hand holding the Makita cordless angle grinder by the barrel grip to demonstrate the ergonomic, slim body design.
Side profile of the Makita angle grinder with a dust collection guard and hose attachment connected for concrete surfacing applications.
Close-up detail of the top of the grinder housing showing the black slide switch with lock-on functionality.
Close-up of the battery receiver area highlighting the mesh intake covers designed to prevent debris from entering the motor.
Close-up of the grinder's barrel grip showing the rubberized soft grip and teal accent panel for operator comfort.
A worker wearing heavy gloves uses the Makita cordless grinder to grind the edge of a metal plate, creating sparks.
Close-up of the angle grinder in action, smoothing a metal edge with a grinding wheel while held by gloved hands.
Side view graphic of the angle grinder with a dimension line indicating an overall length of 14-1/4 inches.
Technical cutaway illustration of the internal brushless motor showing the copper windings and rotor shaft.
MAKITA X-LOCK ANGLE GRINDERS (XAG25, XAG26, GA4570) promotional video
Makita

Makita Angle Grinder XAG04Z 18V LXT Brushless Cordless 4-1/2 to 5 Inch Cut-Off Tool (8500 RPM Automatic Speed Change AFT Brake XPT Bare Tool Shroud)

Only 2 left
SKU: XAG04Z
$159.00 USD

Description

Makita Logo Logout

Heavy-Duty 18V LXT Brushless Cordless 4-1/2 to 5-Inch Angle Grinder with Automatic Speed Change Technology and Active Feedback Bind-Up Control

The Makita XAG04Z 18V LXT Brushless Cordless 4-1/2 to 5 Inch Cut-Off and Angle Grinder Bare Tool Automatic Speed Change Technology delivers specialized structural metal fabrication utility and exceptional concrete masonry scoring efficiency across demanding commercial welding setups, structural steel framing tasks, and facility maintenance alteration routes. Engineered with a premium high-output brushless motor linked natively to an intelligent electronic transmission system, this high-performance layout tool generates up to 8,500 OPM rotational velocity boundaries while dynamically shifting internal torque loads to sustain material removal thresholds under heavy load drops. This professional contractor solution resolves hazardous wheel bind kickback risks, premature electronic failure from airborne fine dust infiltration, and trailing power cable restriction bottlenecks by combining advanced Active Feedback-sensing Technology (AFT) with proprietary Extreme Protection Technology (XPT) labyrinth inner housing seals, an integrated slide switch with lock-on functionality, and specialized wire mesh intake shields. Outfitted with an essential 5-inch maximum grinding disc clearance path, a compact 14-1/4 inch total structural tool chassis frame length, a balanced 5.6 lbs net weight operational payload with battery attached, and a universal 5/8 in. - 11 UNC industry spindle thread assembly, this robust cordless hardware optimizes subcontractor field turnaround metrics during thick pipe beveling runs, structural weld seam blending, and emergency masonry cutting loops. **Battery and charger sold separately.

Best Used For:

  • Structural Steel Welds: Shaving down heavy structural bead lines, cleaning frame joints natively, and beveling commercial carbon steel plates single-handedly for clean code preparation.
  • Concrete Masonry Scoring: Slicing crisp expansion pathways through paving stones, standard concrete blocks, and brick retaining walls cleanly without tool motor strain pauses.
  • Subcontractor Pipe Cutting: Severing thick galvanized utility lines, high-pressure iron piping columns, and rigid framing tracks safely on unpredictable demolition jobsites.

Key Performance & Safety Features

  • Automatic Speed Change: Programmed electronic module shifts execution parameters automatically from high velocity settings to maximum torque outputs depending on structural material resistance tracking.
  • Active Feedback Sensing (AFT): Intelligent current monitoring safety loop disengages the internal motor coils instantly if the abrasive wheel catches or experiences sudden rotation stalls.
  • Extreme Protection Seals (XPT): Labyrinth internal routing channels divert inbound outdoor water drops and fine jobsite masonry dust vectors completely away from core electrical switchboards.
  • Anti-Restart Protective Block: Safety monitoring matrix stops accidental motor initialization routines if an active battery pack is slotted into place while the slide lock toggle is engaged on.
  • Soft Start Speed Control: Micro-controller limits high initial power line current spikes on power up, protecting internal bevel gear assemblies from premature stress degradation loops.

What's Included

  • (1) Makita 18V LXT® Brushless 4-1/2-Inch / 5-Inch Cut-Off Angle Grinder Bare Tool (XAG04Z)
  • (1) 5-Inch Impact-Resistant Protective Type-1 Cut-Off Wheel Guard Shroud
  • (1) 5-Inch Premium Bonded Inox Structural Metal Cut-Off Disc
  • (1) Rigid Adjusting Secondary Side Auxiliary Handle
  • (1) Hardened Pin Style Spindle Nut Lock Wrench

Technical Specifications

Specification Value
Brand Name Makita
Model Number XAG04Z
System Battery Voltage Rating 18V DC
Battery Platform Series LXT® Lithium-Ion Slide Style
Product Classification Type Cordless 4-1/2 in. / 5 in. Cut-Off Angle Grinder (Bare Tool)
Operational Motor Architecture High-Efficiency Brushless Motor System
Maximum Wheel Diameter Sizing 5 in.
No Load Rotational Velocity 8,500 RPM Max
Connection Spindle Thread Specification 5/8 in. - 11 UNC Thread Size
Mechanical Switch Profile Top Slide Switch with Lock-On Functionality
Active Bind-Up Sensing Electronics Yes (Active Feedback-sensing Technology / AFT®)
Total Mechanical Tool Length 14-1/4 in.
Target Application Materials Mild Carbon Steel, Structural Metals, Poured Concrete, Brick, Masonry
Net Hardware Assembly Mass 5.6 lbs. (Measured with attached battery pack)

Pro-Tip: When cutting deep tracking channels inside dense structural concrete slabs, clear the mesh air intake shields of particulate waste building layers periodically between cutting sequences. Keeping the air circulation paths unobstructed maximizes the cooling loop vectors of the brushless motor assembly, sustaining peak torque efficiency across heavy continuous tracking lines.