FILENAMES:

sprocket.jpg
sprocket2.jpg

DESCRIPTION:

Picture of an impressive boring job. Sprocket2.jpg reprocessed by
webmaster to enhance image. Original posted by John Stevenson 
<engineers@btinternet.com>. John provided the following description:

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This is a photo of a sprocket being setup for boring and keying 6" bore x 3/4" keyway.