Spring-loaded plunger expands within the bore (or groove), allowing determination of the internal diameter (or groove width)
With a knurled clamp

Technical Details

Product Details

Package Dimensions
Width : 3.2 inch
Height : 0.5 inch
Length : 7.4 inch

Shipping Weight: 2.4 ounce (View shipping rates and policies)

ASIN : B001OBV1SY