The DEWALT D28115 4-1/2 in. Grinder features a powerful 13 amp motor to help with a variety of grinding tasks. For comfort during extended usage, this grinder has a vibration-reducing side handle and trigger grip. Its low profile, jam-pot gear case helps provide gear alignment for a smooth and quiet transmission while allowing access to tight spaces. Dual-abrasion protection guards against damaging dust and debris that can get in through the air intake valves.