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> Micrometer adjustable boring head plans 4 lathe or mill
Micrometer adjustable boring head plans 4 lathe or mill
A boring chuck or head having a micrometer adjustment of the cutting tool will run shallow bores with a speed and accuracy not always possible with conventional drills or boring tools. A small head like this words equally well on a lathe or a drill press equipped with a slow speed drive. On a lathe you put it in the tailstock and the chuck remains stationary while the work turns. On a drill press you put it in the spindle and the chuck turns while the work remains stationary. It will adjust 1/4" on either side of center.
FROM 1944, A 2 PAGE PLAN TO BUILD THIS ITEM.
Includes complete plans, construction article
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