Einhell BWS 125/850 angle grinder gears pair d53*12 h12*d8

Einhell BWS 125/850 Angle grinder bevel gear pair d53(outer) x 12(inner) mm on a key and pinion h12 x d8(inner) mm on a key, compatible with some grinders with 125 mm cutting disc like Einhell, Soma