Makita Angle Grinder GA4553R 4-1/2 Inch 11 Amp Paddle Switch (11000 RPM Non Removable Tool-Less Guard Soft Start Corded Metal Cutting)
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Makita GA4553R 4-1/2-Inch 11 Amp Corded Paddle Switch Angle Grinder with Non-Removable Guard
The Makita GA4553R 4-1/2-Inch Paddle Switch Angle Grinder is an industrial electric surface preparation tool engineered for high-volume weld grinding, structural metal beveling, and concrete scoring. Driven by a 11.0-amp motor operating at 11,000 RPM, this 6.0-pound corded grinder features a permanently attached non-removable tool-less wheel guard to comply with jobsite safety requirements. Outfitted with a two-stage no-lock-on paddle switch, an integrated lanyard tethering loop for high-altitude work safety, soft-start electronics, and anti-restart protection, this narrow barrel-grip machine utilizes labyrinth gear housing seals to isolate internal bearings from abrasive grinding dust.
Best Used For:
- Structural Weld Grinding & Metal Beveling: Removing heavy weld seams and prepping steel plate edges using 4-1/2 inch grinding wheels at 11,000 RPM.
- High-Altitude & Scaffolding Metal Fabrication: Operating safely on elevated scaffolding and aerial lifts using the built-in structural tether loop for lanyard tie-offs.
- Masonry Tuckpointing & Concrete Scoring: Scoring concrete control joints and cleaning mortar joints with diamond blades while labyrinth seals protect drive bearings.
Key Performance & Safety Features
- Permanently Attached Non-Removable Guard: Meets strict safety compliance codes by keeping the tool-less 4-1/2 inch wheel guard permanently fixed to the gear housing.
- 11.0 Amp Industrial Motor Output: High-output motor maintains 11,000 RPM under heavy downward pressure to prevent wheel bogging during continuous cuts.
- Integrated Lanyard Tether Loop: Built-in steel tether attachment point connects directly to safety lanyards to prevent accidental tool drops from elevated height.
- Multi-Grip No-Lock-On Paddle Switch: Large paddle switch features a two-stage lock-off mechanism that permits comfortable engagement across multiple hand grips.
- Anti-Restart & Soft-Start Protection: Electronic soft-start suppresses start-up torque, while anti-restart prevents motor spin-up if re-energized while switch is depressed.
- Labyrinth Housing Dust Protection: Labyrinth seals and zig-zag epoxy coating protect armature coils and drive bearings from metal shavings and concrete dust.
What's Included
- (1) Makita GA4553R 4-1/2" Paddle Switch Angle Grinder
- (1) Permanently Attached 4-1/2" Tool-Less Wheel Guard (140N42-7)
- (1) Rubberized Side Handle (158237-4)
- (1) Inner Flange (224399-1)
- (1) Lock Nut (224486-6)
- (1) Lock Nut Wrench (782424-9)
Technical Specifications
| Brand / Manufacturer | Makita |
| Model / Part Number | GA4553R |
| Motor Amperage & Voltage | 11.0 Amps @ 120V AC / 60 Hz |
| No Load Operating Speed | 11,000 RPM |
| Grinding Wheel Diameter | 4.50 in. (114.3 mm / 4-1/2 in.) |
| Spindle Thread Size | 5/8 in. - 11 UNC Standard Spindle |
| Switch Style & Safety | Paddle Switch (Two-Stage Lock-Off / No Lock-On) |
| Safety Guard Type | Non-Removable Permanently Attached Tool-Less Guard |
| Motor Electronics | Soft-Start & Anti-Restart Protection Systems |
| Overall Tool Length | 12.75 in. (323.85 mm / 12-3/4 in.) |
| Tool Net Weight | 6.0 lbs (2.72 kg) |
| Shipping Total Weight | 8.18 lbs (3.71 kg) |
| UPC Code | 088381-887878 |
Pro-Tip: Depress the quick-guard lever to rotate the non-removable guard instantly to shield spark throw when switching positions from horizontal weld grinding to overhead beam chamfering.
