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The Bosch GWS9-45 is a corded 4.5-inch angle grinder with an 8.5-amp motor that spins at up to 11,000 RPM. It is built for cutting and grinding metal and masonry, with a metal gear housing, direct-motor cooling and a slim two-position side handle. The burst-protection toolless guard and large spindle lock make wheel changes quick. It sits in the crowded mid-power 4.5-inch class, where rivals such as DeWalt and Makita offer similar amperage; Bosch's edge is the compact grip and cooling design rather than raw power.
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Lowest price we've seen: $105.00 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Owners of the GWS9-45 generally rate it as a solid, compact grinder that punches above its size for cutting and grinding metal. Most praise the grip and guard; some note it is loud and vibrates like other single-speed grinders.
This corded angle grinder from Bosch uses a 4.5-inch wheel and an 8.5-amp motor that runs at up to 11,000 RPM. It is intended for grinding and cutting metal and masonry. The speed is fixed, with no variable speed or electronic speed control.
The housing around the gears is metal, and the carbon brushes are replaceable. Direct-motor cooling and directed airflow help prevent overheating and divert dust. The grip is slim and ergonomic, and the side handle can be set in two positions.
The adjustable wheel guard has burst protection and adjusts without tools. A large spindle lock allows quick wheel changes. A sliding switch turns the grinder on and off.
