If you're after a Bosch GWS 800 Promo 4 inch Small Angle Grinder that punches above its price point, this tool deserves a long look — especially if you’re in metal or masonry work most days on the job. With an 800W motor under the hood, it’s no toy; it’s a grinder that actually works through tough jobs without bogging down.

This grinder sits right in that sweet spot between compact and powerful with a 4 inch (100 mm) disc that’s ideal for grinding, cutting, and surface prep, whether you’re on steel pipe or chasing channels in concrete. And that matters a lot when you’re bouncing between tasks.

Key Features:

• 800W High‑Torque Motor - Delivers enough power to bite into metal, concrete, and stone without stalling.
• 4" Disc Size - Perfect balance of reach and control for both cutting and grinding in tighter spaces.
• Back Switch - Helps reduce dust entering the motor, shortening downtime and maintenance.
• Ergonomic Design - Slim, palm‑friendly grip lets you run long sessions without tiring out your hands.
• M10 Spindle Thread - Sturdy, easy to change accessories and compatible with a wide range of grinding wheels.

Applications

This small angle grinder is at home on a whole bunch of everyday job site tasks — metal cutting, grinding weld beads, chamfering steel edges, chasing mortar or concrete, and even light surface sanding when you fit the right disc. You’ll see electricians, plumbers, masons, and sheet metal folks reach for this size all the time because it’s just nimble enough without feeling underpowered.

Why Choose This Model

The bottom line is that the Bosch GWS 800 Promo isn’t some flimsy entry‑level grinder that falls apart after a couple of weeks. It’s built with a stout motor and a shape that feels right in your hands — and that matters on a day where you’ve already run through a dozen cuts and grinds. The back switch also does a solid job keeping dust out of the works, which means less downtime and fewer gear failures.

Technical Specifications Explained

• Rated Input Power – 800 W - Plenty of grunt for cutting and grinding a wide range of materials.
• No‑Load Speed – 11,000 rpm - Fast spin gives clean, quick cuts and smoother grinds.
• Disc Diameter – 100 mm - The 4" size is versatile for most common applications.
• Weight – 1.7 kg - Light enough to handle overhead or angled work without fatigue.
• Spindle Thread – M10 - Standard thread size makes swapping wheels easy on the job.

Who Should Buy This

If you're a tradesperson who needs a compact, reliable grinder that doesn’t choke on regular use, this Bosch fits the bill — from DIYers tackling tough projects to pros who need a dependable grinder for steel and stone work. It’s not overkill for light jobs, yet it won’t flinch when you demand more from it.

This tool’s sweet spot is clear: anyone looking for muscle in a modest package without paying for features you’ll never use. It’s simple, solid, and gets the job done.