A plug gauge is a tool used to check measure through holes and measure the inner pitch of manufactured hole. The value of the workpiece is accurate and meets the specified standard or not. Material is made of hardened steel. It is a straight cylindrical bar. Able to measure work in both is GO and NOGO

Knowledge tips will consist of topics. Selection of plug gauge sizes, precautions after use, JIS standards stipulated and the name of the plug gauge parts. Guarantee that friends can use it to make a decision before making a purchase.