THIS JACOBS BALL BEARING DRILL CHUCK, IDENTIFIED BY MODEL TYPE 16N, IS CATEGORIZED UNDER TOOLING AND ACCESSORIES. THIS SPECIFIC MODEL FEATURES A WORKING CAPACITY THAT ACCOMMODATES TOOLING FROM 1/8 INCH UP TO 5/8 INCH, OR 3 MILLIMETERS TO 16 MILLIMETERS IN METRIC UNITS. THE ASSEMBLY IS SUPPLIED WITH A CORRESPONDING K4 CHUCK KEY FOR MANUAL OPERATION. FURTHERMORE, THE CHUCK IS INTEGRATED WITH A 1-INCH DIAMETER JACOBS CHUCK ARBOR, WHICH SERVES AS THE MOUNTING INTERFACE FOR CONNECTING THE UNIT TO MACHINERY.