This dust hood has a 200mm wide by 100mm high mouth with a depth of 225mm. The 100mm outside diameter port connects to industry standard 102mm dust hose. When linked to a dust extractor it is used in conjunction with either standard or stay-put dust hose to draw in dust directly from the point of source. It is ideal for use with wood turning lathes, bobbin sanders and router tables.This hose fitting is made from a thermoplastic polymer, which is impact resistant, has structural strength and stiffness, and will not flex or distort under pressure. It has excellent low temperature properties and will perform in extremely cold workshops down to -40°C. The internal bore is smooth to ensure the smooth passage of dust. As all of our fittings are made to exacting and tight tolerances to prevent air loss, a top tip is to use a washing up liquid as a lubricant when initially installing. ©