当需要使用球形测砧千分尺而一时没有现成产品时,可利用普通千分尺自行改制。方法如图所示,取一小段橡胶或塑料套管套紧在千分尺的固定测砧上,然后将一个尺寸适宜的轴承滚珠压紧套入套管的开口端,且紧靠测 When you need to use the ball anvil micrometer without a ready-made products, you can use ordinary micrometer self-restructuring. Method As shown in the figure, take a short piece of rubber or plastic sleeve tighten the micrometer fixed anvil, and then a suitable size of the bearing ball is pressed into the open end of the sleeve, and close to the test