6 Inch Divider Caliper- Measured From Pivot Point -7-1/2 Inches Overall This Divider Is Great For A Variety Of Uses, Such As Scribing Circles Into Metal Or Wood Useful for transferring measurements with the surface is uneven or irregular Locking screw will hold the caliper in position to get an accurate measurement Place the tips on a precision ruler to obtain perfect measurements Made of steel with hardened tips for scribing