5^th ELEMENT (PLASTIC)

The 5^th element caliper can measure the groove depth.

Instructions for use:

• 1. Pick out one pin at the backside;
• 2. Insert into the proper hole, press on a flat metal surface;
• 3. Put the caliper in the groove and push forward the pin until it reaches the very bottom;
• 4. Calculate the depth: length of pin -measured value.