Bosch Cordless Angle Grinder GWS18V-45B14 4-1/2 Inch Cut Off Tool Kit (18V 10000 RPM Restart Protection CORE18V 6.3Ah Battery BC1880 Fast Charger)
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Bosch GWS18V-45B14 18V 4-1/2" Cordless Angle Grinder Kit with CORE18V 6.3Ah Battery and Fast Charger
The Bosch GWS18V-45B14 18V cordless 4-1/2-inch angle grinder kit executes heavy rebar sectioning, structural steel cutting, weld seam blending, and pipe beveling across industrial jobsites. Powered by a high-output four-pole motor spinning standard 5/8"-11 threaded abrasive wheels at 10,000 no-load RPM and paired with a high-capacity CORE18V 6.3Ah lithium-ion battery featuring CoolPack 2.0 thermal management, this handheld grinder sustains cutting torque under demanding mechanical loads. Outfitted with electronic restart protection to eliminate unintended startups, an ergonomic two-position Vibration Control auxiliary handle, a burst-resistant safety guard, and an included BC1880 fast charger reaching an 80% charge in 41 minutes, it provides commercial fabricators, welders, and mechanical tradesmen with high-mobility surface finishing and dependable jobsite safety.
Best Used For:
- Structural Rebar and Conduit Sectioning: Slicing through heavy #4 to #8 steel rebar, threaded rod drops, unistrut channels, and EMT conduit quickly on commercial jobsites.
- Weld Seam Grinding and Bead Dressing: Flattening and blending stick, MIG, and flux-cored weld beads flush on structural steel plates using Type 27 depressed-center grinding discs.
- Metal Pipe Chamfering and Surface Prep: Beveling carbon steel pipe joints, cleaning corroded machinery brackets, and stripping mill scale prior to structural welding passes.
Key Performance & Safety Features
- High-Torque 10,000 RPM Motor: Heavy-duty open-frame power plant maintains high peripheral abrasive disc velocity for aggressive cutting and stock removal passes.
- CORE18V 6.3Ah Lithium-Ion Battery: Next-generation high-density cell structure delivers up to 80% more operational power and extended runtime under heavy grinding loads.
- CoolPack 2.0 Thermal Housing: Advanced heat-conductive casing channels thermal energy away from internal lithium-ion cells to extend overall battery operating life.
- BC1880 Rapid Battery Charger: High-amperage fast charging station charges the CORE18V 6.3Ah pack to 80% capacity in 41 minutes and 100% in 55 minutes.
- Electronic Restart Protection: Prevents the grinder from accidental automatic startup if the battery pack is inserted while the power switch remains locked in the on position.
- Two-Position Vibration Control Handle: Shock-dampening auxiliary side grip absorbs hand-arm vibration to maximize operator comfort and directional control during long runs.
What's Included
- (1) Bosch GWS18V-45 18V 4-1/2" Cordless Angle Grinder
- (1) Bosch GBA18V63 CORE18V Lithium-Ion 6.3Ah Battery Pack
- (1) Bosch BC1880 18V Lithium-Ion Fast Charger
- (1) Vibration Control Auxiliary Side Handle
- (1) Burst-Resistant Adjustable Wheel Guard
- (1) 4-1/2" Abrasive Grinding Disc
- (1) Backing Flange and Spindle Lock Nut Set
- (1) Spanner Wrench
- (1) Heavy-Duty Jobsite Storage Carrying Bag
Technical Specifications
| Manufacturer | Bosch Power Tools |
| Model / Part Number | GWS18V-45B14 |
| Product Category | Cordless Angle Grinder Kit with Battery and Charger |
| Operating Voltage | 18.0 Volts DC (Bosch 18V System) |
| No-Load Rotational Speed | 10,000 RPM |
| Wheel Diameter Capacity | 4.50 inches (4-1/2 in / 114.3 mm) |
| Spindle Thread Size | 5/8"-11 UNC Standard Threaded Spindle |
| Included Battery Pack | (1) GBA18V63 CORE18V 6.3Ah Lithium-Ion with CoolPack 2.0 |
| Included Rapid Charger | Bosch BC1880 18V Fast Charger (80% Charge in 41 min) |
| Safety Electronics | Electronic Restart Protection, Overload Current Limiter |
| Switch Control Mechanism | Side Slide Switch with Lock-On Function |
| Auxiliary Handle Configuration | 2-Position Vibration Control Side Handle (Left/Right) |
| Tool Net Operating Weight | 5.10 lbs (Tool with Battery: 9.88 lbs Full Kit Weight) |
Pro-Tip: Thread the Vibration Control auxiliary handle into the top-side mount on the left or right side depending on your cut line; angling the grinder at 15 to 30 degrees during weld grinding ensures even disc wear and prevents surface gouging.
