Stainless steel inserts are 50% stronger than the original thread. Kit Includes: #2-56 x 1.5D (6pcs), #4 - 40 x 1.5D (6pcs), #6-32 x 1.5D (6pcs), #8-32 x 1.5D (6pcs), #10-24 x 1.5D (6pcs), #10-32 x 1.5D (6pcs).
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