Fowler 52-243-220-1 Inside Micrometer Set, 2-20" Range .001" Graduation

ITEM DESCRIPTION

• Range: 2-20"
• Graduation: .001"
• Accuracy: .00005″ x (3 + L″/2)
• Each set consists of an inside micrometer head and a series of fully hardened and lapped extension rods of different lengths all with carbide measuring faces
  
• Anvil and spindle are hardened and precision ground with micro-lap finish on ends
  
• Spindle thread hardened, ground & lapped
  
• Microfine graduations on satin chrome
  
• Positive locking nut on spindle
  
• It is recommended that the inside micrometer with a rod be calibrated by a micrometer or ring gage
  
• Coiled spring pressure contact type rods are each marked with appropriate length
  
• Quick, easy zero adjustment on the sleeve
  
• Meets or exceeds Federal accuracy specs.
  
• Reference standard included with set
• With wrench and a case

*Image shown for representational purposes only