The finest and heaviest duty, most indestructible bit brace ever made. Silky smooth ball bearing construction. Oil filled. Concealed ratchet system. Heavy-duty chuck. Accepts both traditional square tapered shank bits as well as round shank bits. The last bit brace you will ever need! Good jaws. Smooth operation and properly functioning ratchet. Stanley purchased North Bros. (Yankee) in 1947.