The Handler Chuk/Changer was designed to provide full automatic, precision changing of ¼” [6.3mm] and 3/32” [2.4mm] diameter burs, mandrels and chuck accessories with the slight movement of a handle while the motor is turning. The Chuk/Changer provides the technician with exacting concentricity and quick, easy changing of various chucks which greatly speeds grinding, polishing and finishing procedures. The No.16 Chuk/Changer is adaptable to most types of dental motors, including Red Wing and Baldor. The No.16 is shipped complete with chuck accessories as follows. P-16-15 Arbor Band Chuck P-16-16 Spiral Tapered Chuck P-16-19 Stone Chucks P-16-20 Mandrels for small abrasive wheels P-16-8 Collet Wrench P-16-10 Clutch P16-ADW Adapter NOTE: Specify make, model and catalogue number of lathe when ordering. 16L Chuk/Changer is for use on left side of motor. Shipping Wgt: 5 lbs. [2.3 Kg] Unit Dimensions: 8 ¾”L x 4”W x 6 ¼”H [22cm x 10cm x 16cm]