Package Dimensions: 7.111 H x 7.62 L x 24.637 W (centimetres) Country of Origin : China For adapting tools with Morse taper shanks to machines having smaller, same or larger Morse taper spindle (EXTENSION SOCKET) Package Weight: 1.723 kilograms

MT4 Inside to MT3 Outside Drill Sleeve. For adapting tools with Morse taper shanks to machines having smaller, same or larger Morse taper spindle.