"The 3445MAX is the perfect choice for high performance finishing. This 4 1/2in. air angle grinder combines a unique motor controller that virtually eliminates overspeeding.with a powerful 88 HP motor to provide plenty of power for rust and material removal. Disc Diameter in. 4 1/2, Air Inlet Size in. NPT 1/4, CFM at Load 41, Min. Hose Size in. 3/8, Air Consumption CFM 9, Tool Length in. 9 1/2, Side Handle Yes, Speed RPM 12,000. 88 HP motor 5/8in. spindle, #11 thread Rear exhaust with piped-away option Composite grip for improved comfort Locking lever with tease throttle Lightweight design"
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