Bosch 4-1/2" Small Angle Grinder GWS9-45 COMPACT POWER: The Bosch GWS9-45 Angle Grinder contains a powerful motor in a lightweight, compact tool. At only 4 lbs, the GWS9-45 has a motor that provides 8.5 amps and 11,000 rpm. DURABLE: The GWS9-45 includes durable carbon brushes for extended tool life. The Service Minder brushes also stop the grinder when preventative maintenance is needed. EFFICIENT: The GWS9-45 provides direct-motor cooling for better workload and a quick-change toolless disc change and a large spindle lock. The side handle conveniently adjust to two positions PROTECTION: Directed air flow diverts dust from vital components of the grinder while the burst-protection adjustable guard provides user protection and safety. Quick-change toolless disc change and a large spindle lock