The American-made dial calipers are used by mechanics and toolmakers everywhere. It has sharp, black graduations on the satin finished bar, knife-edge contacts for both inside and outside measurements, one hand use with the thumb-operated, fine adjustment roll, hardened stainless steel bar, measuring surfaces, rack, gears and depth rod and positive split-gear anti-backlash control. It features include direct reading, ease-of-handling, reliability and accuracy making these one of the handiest measuring tools available. This series features white dial, 0 to 6" range, and .001" graduations. It includes redemption card for Standard Letter of Certification (SLC).