642, 642M Top Reading Dial Depth Gages 0-8.6"/0-215MM This dial depth gage uses the back-plunger indicator to provide an upward- facing dial for easier readout. The operator selects the extension and contact point required, zeros the tool on a master and then reads any deviation of the work directly on the dial. • Indicator does not have to be repositioned to get the full range available • Choice of 2-1/2" (60mm) or 4" (100mm) base • Two contacts and five extensions extend the range to 8.6" or 215mm • Charts are supplied showing combinations of contacts and extensions required to achieve certain lengths Above: 642AZ side view Below: top view 4" (101.6mm) 2" (50.8mm) 1" (25.4mm) .8" (20.3mm) .4" (10.2mm) .350" (8.9mm) .548" (13.9mm) 1" (25.4mm) .625" (15.8mm) 2-1/2" (63.5mm) Depth Gages 642 Top Reading Dial Depth Gages* Cat. No. EDP Range Graduation Dial Indicator Range Approx. Base Length 642Z 65103 0-8.6" .001" .200" 2-1/2" 642AZ 65104 4" 642MZ 65105 0-215mm 0.01mm 5mm 60mm 642MAZ 65106 100mm *With maximum extension added and contact options 132 D epth G ages