A-A-52212
The gage shall have a locking device which is fastened to the body of the mounting block. The locking device shall lock the adjustable contact point on the indicator dial to a threaded hole in the mounting block. A toggle joint shall be provided with a toggle joint handle that can be threaded into the toggle joint. The handle shall be 8 1/2 inches + 1 inch in length and 5/16 inch + 1/8 inch
in diameter. The handle shall have a knurled outer surface with one end threaded for attachment to the block. The other end shall have a knurled cap screw. Extension rods shall be provided that
slide into an opening in the lower section of the cylinder block. The rods shall be held in the gage spindle by a method that provides for easy insertion and removal of the rods. The rods shall be of sufficient length to measure the 0.001 inch increments within the 2 1/2 inch to 9 inch range of the cylinder gage.
FIGURE 1. Cylinder gage with dial mounted on block with locking device
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