4 1/2 in Wheel Dia, Paddle, with Lock-On, Angle Grinder - 5GUY2|2680-20 - Grainger
Milwaukee M18 FUEL 18V Lithium-Ion Brushless Cordless 4-1/2 in./5 in. Grinder with Paddle Switch (2-Tools) 2880-20-2880-20 - The Home Depot
11 Amp 4-1/2" Small Angle Grinder Paddle, Lock-On
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Milwaukee M18FAG125XPD-502C 18V 5.0Ah Li-ion Cordless Fuel 125 mm (5") Angle Grinder with Deadman Paddle Switch Combo Kit