Yellow clad blade has markings on both sides - consecutive inches to 1/16ths on one side and diameter inches to 1/100ths on the other side.
Zero falls in the same place on each side of the blade; conversion from diameter to circumference is made by simply turning the blade.
Spring action returns blade to the case.

Technical Details

Size (LWH): 2 inches, 1.9 inches, 0.4 inches
Product Details
Product Dimensions: 2 x 1.9 x 0.4 inches
Shipping Weight: 0.05 pounds (View shipping rates and policies)
ASIN : B0002JT2AI