Used to size or enlarge cored, punched or other
pre formed holes; not designed to drill from solid. Operates at heavier feeds
than 2 flute drills since chiploads are spread over a greater number of cutting
edges. Reduce regular drill speed 25% and double the feed rate.
Package quantities; 3/8 to 1/2 - 1 per envelope, 17/32 to 1 - 1 per tube, 1-1/32
to 1-1/2 - 1 per box
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