Inside Groove Vernier Calipers with Flat Points (open block) /开式扁头内沟槽游标卡尺

Features :
Can measure narrow grooves in a hole.
Special order requires the following data:
1.The diameter of the hole
2.The distance from the groove to the orifice
3.The width of the groove
4.The depth of each groove
5.The shape of the groove bottom

 we have moon block for choice