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Tool Bit, 5/16" HSS Threading, Set of Two

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$12.77 $19.95 In stock

5/16" High Speed Steel tool bits pre-sharpened for external and internal threading.
Both bits have 55 degree and 60 degree cutting ends.

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Customer Reviews (4.8 / 5 · 5 reviews)

Joshua R. ★★★★★

Used one for a quick internal threading job on some steel, and the pre-sharpened 55-degree end cut cleanly with almost no cleanup. Happy I have a 60-degree end ready for the next project without needing to swap tools.

Julian C. ★★★★★

Sharpened both ends at 55 and 60 degrees, which saved me a lot of setup time on my lathe. They cut clean threads on a stainless steel bolt without chipping. Exactly what I needed for an internal threading repair job.

Timothy E. ★★★★★

Had a couple of small jobs cutting 60° internal threads, and the pre-sharpened tip saved me the hassle of grinding my own. The 55° end is still untouched, but the steel held up fine on some mild steel stock.