VCOIL Plug Gauge (GO) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M39 x 4 Hydraulic Expansion Chucks and right-hand cutting for efficient

and right-hand cutting for efficient material removal and smooth finishes

It features a left-hand spiral flute with right-hand cutting and a 14

Built around an intermediate precision K10 tip and a taper shank

and prototyping shops

By choosing the OZ32 Collet Standard Precision

VCOIL Plug Gauge (GO) - Metric (STI) - Heli Coil Gauge - Right Hand - 4H - M39 x 4 Hydraulic Expansion Chucks and right-hand cutting for efficientVLKEL VCOIL Plug Gauge (GO) for metric M39 x 4 threads provides precise, hand validated thread acceptance for right hand 4H internal threads, aligned with ANSI ASME standards. Thread standard: Metric (STI) internal thread system conforming to ANSI ASME guidelines. Size: M39 x 4 (4 mm pitch) for 4H internal thread applications. Gauge type: GO thread plug gauge designed to be threaded into the corresponding cut by hand to verify acceptance. Handedness: