Item Type: BT30 Tightening Fixture Material: Aluminum alloy Package List 1 x BT30 Tightening Fixture Please allow tiny size error due to manual measurement. Please take the real one as standard. 1DURABLE MATERIAL: Aluminum alloy material, durable, high hardness, light weight, possess good strength and good corrosion resistance 2FLEXIBLE AND EFFICIENT: Flexible and versatile, support vertical horizontal, convenient and fast, saving time and effort 3GOOD PROTECTION: Designed to provide maximum protection for the tool holder, the tool holder has exceptional grip in both horizontal and vertical positions 4LIGHT AND EASY TO INSTALL: The fastening fixture is light and compact, easy to install on the workbench or tool cart 5INDUSTRIAL USE: BT30 tightening fixture is made with investment casting, aluminum seat cover, industrial application