VCOIL Plug Gauge (D/E) - BSP (STI) - Heli Coil Gauge - Right Hand - 3/8 x 19 Power Milling Chucks high-precision results at a 0

high-precision results at a 0

or tackling precision projects at home

true threads that grip fasteners securely

ISO MIR threading compatibility: Ensures reliable

Hardened Steel Construction for Durability: Built to withstand daily workshop use

VCOIL Plug Gauge (D/E) - BSP (STI) - Heli Coil Gauge - Right Hand - 3/8 x 19 Power Milling Chucks high-precision results at a 0A precision go no go thread gauge for helicoil and BSP threaded holes, designed for Right Hand 3 8 x 19 applications. Engineered for quick, repeatable quality checks in machining and repair environments. Go No Go design: Combines go and no go ends to verify both the entry and the limit of the thread to the required standard. Scrap side marking: Scrap side is clearly identified with a red ring for fast visual orientation. ANSI ASME standard compliance: