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reliable left-handed threading
Why the second lead matters: with two cutting starts engaging the work
high-precision hole sizes with a smooth finish
By delivering precise size control with robust HSS construction and a dependable taper shank
VCOIL Plug Gauge (D/E) - BSP (STI) - Heli Coil Gauge - Right Hand - 1/8 x 28 NCDC Drill Chuck reliable left-handed threadingThe VCOIL Plug Gauge is a precision go no go thread gauge crafted for Helicoil BSP (STI) right hand threads at 1 8 x 28. Its designed to reliably verify ANSI ASME standard threads with a quick, hand operated check. Size Thread: 1 8 x 28 BSP (STI) right hand thread verification Go No Go thread gauge: Combines a go end and a no go end to confirm both acceptance and rejection limits in one tool Scrap side marked: Red ring on the scrap side for fast
