uxcell 4.2cm Inner Dia Angle Grinder Wheel Guard Protection for Bosch 100 Product Name : Angle Grinder Wheel Guard;Fit for : For Bosch 100 Angle Grinder Material : Metal;Color : Black Center Hollow Out Loop Dia : 4.2cm / 1.7";Srew Thread Dia : 6mm/0.2" Overall Size : 11.5 x 8.2 x 3.9cm / 4.5&#39;&#39; x 3.2&#39;&#39; x 1.5&ldquo;(L*W*H);Net Weight : 86g Package Content : 1 x Angle Grinder Wheel Guard(Non-OEM)