PROBLEM TO BE SOLVED: To provide a piercing tool capable of arbitrarily exchanging and using a tip portion that first abuts on an object to be pierced such as the ground, and capable of firmly attaching the tip portion. SOLUTION: The piercing tool 1 includes a tubular tip portion 2 that first abuts on an object, and at least a part of a tubular main body portion 3 to which the tip portion 2 is attached to one end portion, and the tip portion 2 is provided. It is configured to be removable from one end 32 of the main body 3. The main body 3 has an outer peripheral surface provided with a male screw 36 that meshes with the female screw of the tip 2 at the end 32 on the side to which the tip 2 is attached, and an incomplete screw portion in the inner end region of the male screw 36. Is provided. The tip portion 2 is provided with a screw hole 26 penetrating a portion facing a part of the male screw 36, and the screw hole 26 penetrating when attached to one end portion 32 of the main body portion 3 has no head. The set screw 4 is fitted and fixed. [Selection diagram] Fig. 1【課題】地面等の突き刺す対象物に最初に突き当たる先端の部分を任意に交換して使用することができ、またその先端の部分の強固な取り付けを行うことができる突き刺し具を提供する。【解決手段】突き刺し具１は、対象物に最初に突き当たる筒状の先端部２と、先端部２が一端部に取り付けられる少なくとも一部が筒状の本体部３とを備え、先端部２が本体部３の一端部３２に対して着脱可能に構成されている。本体部３は、先端部２が取り付けられる側の端部３２に先端部２の雌ねじと噛み合う雄ねじ３６が設けられた外周面を有するとともに、雄ねじ３６のうち内側の端部領域に不完全ねじ部が設けられている。先端部２は、雄ねじ３６の一部の領域と向き合う部分に貫通したねじ孔２６が設けられているとともに、本体部３の一端部３２に取り付けたときに貫通したねじ孔２６に頭部のない止めねじ４が嵌め込まれて固定されている。【選択図】図１
