Compare to Starrett, Mitutoyo, B&S or any other big name in precision tools. The pictures shown is of the 0-6" set. These micrometers are identical to the 6" set but they have 6 extra micrometers and a much larger wood box. ACCURATE TO .0001 RATCHET THIMBLE FOR ACCURATE READINGS CARBIDE FACED ANVILS PRECISION GROUND STANDARDS FOR EACH MIC WRENCH FOR EACH MIC PRECISION GROUND SPINDLES NICE WOODEN BOX