Thread forming tool comprises an elongated body having a thread forming portion with an annular ridge, the cross-section of the body at the centre of the ridge being non-circular

摘要

Thread forming tool comprises an elongated body (4) having a first end (16) with a connector portion, and a second end (10) having a thread forming portion (12). The thread forming portion (12) includes at least one annular ridge (14), the cross-section of the body at the center of the ridge being non-circular. The cross-section preferably includes at least three lobes.