The Metabo 310010950 120V armature assembly 110V–120V fits the following models :
100mm (4-Inch) Disc Grinders
W 9-100 (00350370)
115mm (4.5-Inch) Disc Grinders
W 9-115 (00354370), W 9-115 Quick (00371370)
WP 9-115 Quick (00380370)
125mm (5-Inch) Disc Grinders
W 9-125 Quick (00373370)
WP 9-125 Quick (00381370)