This attachment has a 0.017 inch spray opening with a spray width of 25cm.The first digit of an attachment indicates the spray width. You must multiply this number by 5 and know how wide the beam is (attachment 517 = 25cm). The last two digits indicate the diameter of the spray port. The lower the number, the smaller the opening of the spray attachment and the thinner the liquid you want to spray.Important: Color manufacturers provide a job description. You can read exactly which attachment is recommended for the affected color. It is difficult for us to indicate for all varieties of color which attachment is suitable for this.Can be used for e.g.: Flush, base color, primer, filler, inner latex, Tectyl.This attachment can be used in combination with the following devices:· Hea Control Pro 250M· Hea Control Pro 250R· Hea Control Pro 350M· Hea Control Pro 350RThis text is machine translated.