Made in the USA by Dorian Tool. This is a Quick-Change Lathe Tool Holder. Quickly and easily installed on any engine lathe, bench or turret lathe, for a wide range of operations – from fine precision work to heavy duty cutting. Guaranteed lasting repetitive accuracy to within millionths. Only a second to change tools. Rugged – no chatter or vibration. No time wasted with shims. Safe and simple to operate. For lathes with 14″ to 17″ swing. D35CXA-4: Heavy Duty Boring Bar Tool Holder – 1 Capacity. Overall Dimensions: 3-3/4″ x 2-1/4″ x 2-1/4 high. Comes exactly as shown in pictures. REF #: GD5.5.