The basic 1821 model and the advanced 1824E of Bosch's Rat-Tail Small Angle Grinders feature Bosch kickback and restart protection technology. The 1821 offers a 9.5 amp AC/DC compatible motor and weighs 5.2 lbs., while the 1824E offers a 12 amp motor and weighs 5.3 lbs. Bosch Electronic Kickback Protection enhances confidence with electronics that monitor the tool for rapid slowdown of RPM.
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