Digital Calipers without upper jaws/单向爪数显卡尺

Features :
With fine adjustment .
Dual-purpose (O.D, I.D) and Tri-purpose (O.D, I.D & Steps) are available.
Jaw ends radiused are fit for accurate inside measurement and more durable than the knife edge jaws.
With presetting function.
Zero-setting at any position.
Data output.