Overview Reviews Product Description Dumas 2018 Drive Coupling Socket 3/16" A brass coupling for 3/16" size shaft. Product Videos Custom Field Product Reviews Write a Review Write a Review × Dumas Products Dumas 2018 Drive Coupling Socket 3/16" Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *