These small calipers are ideal for using in tight spaces where you may have difficulty getting to with the larger calipers. Dial diameter is only 1 1/4". Also great for sticking in your pocket if you move around alot.Very very nice craftsmanship in thes calipers. Look at the features:

FULL 0" - 4" MEASURING CAPABILITY BY THOUSANDTHS.
4 WAY MEASURING CAPABILITY

CHECKS OUTSIDE DIAMETERS.

CHECKS INSIDE DIAMETERS.
CHECKS DEPTHS & STEPS.

MADE FROM AIRCRAFT QUALITY HARDENED STAINLESS STEEL.

SHOCK PROOF.

ADJUSTABLE BEZEL WITH LOCKING DEVICE

DIAL READS .100 PER REVOLUTION

YOUR CHOICE OF WHITE OR BLACK FACE

Stainless, hardened steel beam and jaws with lapped measuring faces
COMES WITH FITTED CASE.