A contact nose 15, in which an ejection opening 24 is formed coaxially with an ejection opening 18 of a nose portion 13 that guides a driver slidably, is slidably provided at an end part of the nose portion 13 to be urged in a direction of an end portion of the ejection opening 18. A guide slope 28 adapted to guide a tip end of a nail, which is hammered out tiltingly from the ejection opening 18 of the nose portion 13, into the ejection opening 24 is formed on an upper rear side of the ejection opening 24 of the contact nose 15.