Fowler 52-250-302-1 1-2" Digit Counter Disc Micrometer

Fowler's Digit-Disc Micrometers feature extra large diameter discs which easily enter hard to reach places such as narrow grooves, slots and recesses.

Features:

• Hammertone blue baked enamel finished frame is tapered for hard to get at places
• Anvil and spindle are hardened and precision ground with microlap finish on measuring faces
• Positive locking nut on the spindle
• Quick and easy zero adjustment on sleeve
• Ratchet thimble
• The disc type anvil and spindle simplifies measuring the thickness of difficult, closely spaced sections, ribs, keys, fins, cutting edges on forming tools, chordal thickness of gear teeth, etc.
• Meets or exceeds Federal accuracy specs.
• Sizes over 1" include standards
• Includes wrench and case
• Range:1-2''
• Graduation:0.0001''
• Accuracy:0.00016''
• Flatness:0.00004''
• Parallelism:0.00016''
• Disc Diameter:0.708''
• Disc Edge Thickness:0.035''
• Center opening:0.280''