Japanese family names are extremely varied: according to estimates, there are over 100,000 different surnames in use today in Japan. The three most common family names in Japan are SatÅ (ä½è¤), Suzuki (é´æ¨), and Takahashi (é«æ©).
Making the world better, one answer at a time. the purpose of wedging clay is to get the air bubles out. if you dont getthe air bubles out, when being fired, the air will try to escape your now hard pot, when it can't , it will explode your pot.
The purpose of spot drilling is to drill a hole that will act as a guide for drilling the final hole. The hole is only drilled part way into the workpiece because it is only used to guide the beginning of the next drilling process.