Ryobi ZRAG453G 6.5 Amp 4-1/2 in. Angle Grinder (Green) Spindle lock prevents spindle from turning while installing and removing wheels and discs Three-position side handle rotates left and right to offer versatile working positions Ergonomic handle features GripZone technology for steadiness and comfort Rear handle can be placed 90 degrees left or right to suit individual needs Lightweight for comfortable use and reduced user fatigue