Systems and methods for forming an opening in a stack
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United States of America Patent
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May 9, 2017
Issued Date -
N/A
app pub date -
Jan 22, 2014
filing date -
Jan 22, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
One aspect of the disclosure relates to a cutting tool for forming a final opening in a stack that includes at least two layers and a pilot opening having a pilot-opening dimension and extending through at least one of the at least two layers. The cutting tool includes a shank. The cutting tool also includes a first portion including at least one of a first coating or the first coating and a second coating, wherein the first coating at least partially covers the first portion. The cutting tool also includes a second portion between the shank and the first portion, wherein the second portion includes the second coating, and wherein the second coating at least partially covers the second portion.
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