Dust Collection - Reduces clean-up time and provides cleaner, safer air for userRemovable Nose Piece - Quickly removes for flush surfacingReplaceable Brush Ring - Low cost maintenance vs. competitionCompletely tool free – Compatible with all 4", 4 ½" and 5" Small Angle GrindersBosch AIRSWEEP™ Vacuum Compatible - Plug and play without using adaptors