Length of the Helicoil inserts are 1-1/2 times the diameter of the bolt, which provides sufficient strength in most applications.Inch coarseContains 6 insertsDrill size 17/32

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Length of the Helicoil inserts are 1-1/2 times the diameter of the bolt, which provides sufficient strength in most applications.Inch coarseContains 6 insertsDrill size 17/32

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