One quarter blade of the tip was lacking at the place where 20 holes were opened. However, 40 holes were drilled after that. Because it was a half price compared with famous manufacturer products, it is a feeling that can not be said as good or bad. If it is a famous manufacturer product, is it many times sturdy? I hope to be able to dispose of one after the garden stone so it is planned to start working soon, hoping that the cutting edge will not be lacked until then.