Bosch Angle Grinder GWS12-450PBD 4-1/2 Inch Corded Tool (12A Motor 11500 RPM Paddle Switch Brake KickBack Drop Control Metal Concrete Slabs Cutting)

In stock
SKU: GWS12-450PBD
Regular price $199.00 USD

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Bosch GWS12-450PBD 4-1/2" 12-Amp Ergonomic Angle Grinder with Paddle Switch

The Bosch GWS12-450PBD 4-1/2-inch ergonomic angle grinder delivers heavy-duty surface prep and cutting capability powered by a high-output 12.0-amp corded motor running at 11,500 RPM. Engineered with a multi-position no lock-on paddle switch, an electronic braking system, and sensor-based Drop Control, this variable-speed tool provides immediate wheel deceleration upon switch release or accidental jobsite drops. Outfitted with integrated KickBack Control and an anti-vibration auxiliary side handle, it protects operators during aggressive metal beveling, weld grinding, and masonry cut-off tasks.

Best Used For:

  • Structural Steel Fabrication: Beveling thick plate steel, cutting structural rebar, and smoothing heavy weld seams at continuous high speeds.
  • Concrete and Masonry Tuckpointing: Slitting mortar joints and cutting concrete pavers cleanly when paired with compatible Bosch dust extraction hoods.
  • High-Safety Industrial Maintenance: Operating in safety-critical manufacturing plants where no lock-on deadman switches and rapid braking systems are strictly mandated.

Key Performance & Safety Features

  • Powerful 12-Amp Motor: Produces up to 11,500 no-load RPM to maintain aggressive stock removal rates without stalling under heavy load.
  • Comprehensive Sensor Protection: KickBack Control shuts off power during wheel binding, while Drop Control cuts the motor if the unit falls.
  • Electronic Rapid Braking System: Brings rotating abrasive wheels to a complete stop within seconds after releasing the paddle switch.
  • No Lock-On Paddle Switch: Ergonomic full-length deadman trigger provides versatile grip positions and stops operation when released.
  • Anti-Vibration Side Handle: Dampens harsh harmonic vibrations transferred to the operator's hands during extended grinding sessions.
  • Dual Guard System Included: Ships complete with both a Type A cutting wheel guard and a Type B grinding guard for complete application safety.

What's Included

  • (1) Bosch GWS12-450PBD 4-1/2" Ergonomic Angle Grinder
  • (1) Type A (41/1A) Cutting Wheel Guard
  • (1) Type B (27) Grinding Wheel Guard
  • (1) Anti-Vibration Auxiliary Side Handle
  • (1) Backing Flange (for grinders with brake)
  • (1) Lock Nut
  • (1) Lock Nut Spanner Wrench

Technical Specifications

Brand Bosch Power Tools
Model Number GWS12-450PBD
Motor Amperage 12.0 A
Operating Voltage 120V AC (60 Hz)
Wheel Diameter 4-1/2 inches (114.3 mm)
No-Load Speed (RPM) Up to 11,500 RPM (Variable Speed Selection)
Spindle Thread Size 5/8" - 11 UNC
Switch Configuration No Lock-On Paddle Switch (Deadman Style)
Safety Systems KickBack Control, Drop Control, Restart Protection, Soft Start, Overload Protection
Tool Length 12.87 inches (326.9 mm)
Tool Height 4.29 inches (109.0 mm)
Tool Weight 5.29 lbs (2.40 kg)

Pro-Tip: When swapping between Type 27 grinding wheels and Type 1A cutting wheels, always pair the operation with its matching included guard to ensure 100% compliance with OSHA wheel containment standards.