OSG Threading Tap NPSF A-Spiral Flute - FORME Powder Metal Right Hand -TiCN Coated - Blind Holes DIN5156 - 3/8 x 18 End Mill Holders Whistle notch shank for secure

Whistle notch shank for secure seating: Ensures stable alignment and consistent hole quality

The combination of a left-hand flute with right-hand cutting supports effective chip removal and stable cutting performance

001 mm (H5

DIN 8089 / ISO H4 tolerance: Tight

and fabricators who demand tight hole tolerances in mid-range sizes

OSG Threading Tap NPSF A-Spiral Flute - FORME Powder Metal Right Hand -TiCN Coated - Blind Holes DIN5156 - 3/8 x 18 End Mill Holders Whistle notch shank for secureThe OSG Threading Tap NPSF A Spiral Flute is a precision tapping tool designed for engineers and machinists who need reliable NPSF threads in blind hole applications. Built with FORME powder metal and a TiCN coating, it delivers durable, high performance threading for hydraulic and pneumatic fittings. Thread form: NPSF (National Pipe Straight Fuel) threads for blind hole tapping, ideal for accurate, leakfree connections. Flute design: ASpiral flute