Models up to and including 0.24" have two measuring points
Models 0.275" and above have three measuring points
Calibrated setting rings on sizes up to 4" included
Self-centering contact points for accurate measurements
Contact points allow measurements near to the bottom of a blind bore or in a deep bore using additional extensions
Ratchet thimble
Carbide measuring surfaces
Short Form Certificate of Calibration included on sizes up to 4"
Furnished in a fitted case
2 year warranty
WARNING: This Product Can Expose You To Materials And/Or Chemicals Which Are Known To The State Of California To Cause Cancer And/Or Reproductive Harm.