Bosch forstner bit straight shank din 7483 g bosch 2608596976 these forstner bits from bosch conform to din 7483 g forstner drill bits din 7483 g 30 x 90 mm d 8 mm pack of 1 bosch 2608596976 forstner bit 30 x 90mm straight shank 8mm din 7483 g