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5 radius creates consistent
Flute design: Left-hand spiral flute with right-hand cutting for efficient material removal and controlled reaming
Its taper shank provides secure guidance in compatible toolholding systems
5 mm diameter and four flutes
Designed for predictable performance in production and repair environments
VCOIL Plug Gauge (D/E) - BSW (STI) - Heli Coil Gauge - Right Hand - Medium - 1/2 x 12 Tapping Chucks 5 radius creates consistentThe VCOIL Plug Gauge (D E) is a precision go no go thread gauge designed for Helicoil insert applications in BSW (STI) right hand threads. Sized for 1 2 x 12, it delivers reliable, on the spot verification aligned with ANSI ASME thread standards. Go No Go End: Dual ends provide quick acceptance (go) and rejection (no go) checks in one tool. The scrap side is clearly marked with a red ring for easy identification. Thread Standard Compliance:
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