SANDVIK Sandvik HSS-PM Blue Spiral Flute PVD FeN coated Tap 3/4" UNF, DIN 2184-1 Long Body

Sandvik UNF 3/4”16 Spiral Flute Tap – Premium Blind-Hole Tapping (DIN 2184-1)

Built for precision threading in steels, stainless steels, and cast irons (PMK). The 45o spiral flute geometry ensures smooth chip evacuation in blind holes, enabling consistent, accurate threads in demanding CNC and conventional machining.

Key Features & Benefits

• Extended Tool Life – HSS-E substrate with PVD FeN coating for superior wear resistance.
• Reliable Blind-Hole Performance – 45o spiral flutes efficiently lift chips out of the hole.
• Precision Standards – Manufactured to DIN 2184-1 with 2B tolerance class for accurate threading.
• Strong & Stable – 4-flute design delivers balance between strength and cutting performance.

Technical SpecificationsSpecificationMetricImperialWorkpiece Material(s)PMKThread SizeUNF 3/4”163/4”-16Thread FormUNF 60oUNF 60oThread Pitch1.59 mm16 TPIThread Diameter19.05 mm0.75 inTap Chamfer Length3.34 mm0.1316 inPremachined Hole Diameter17.50 mm0.689 inPremachined Hole Type / Hole TypeBlind holeBlind holeThread Tolerance Class2BShank StandardDIN 2184-1Usable Length (LU)77.55 mm3.0512 inFunctional Length (LF)125 mm4.9213 inOverall Length (OAL)125 mm4.9213 inNeck Diameter13.6 mm0.5354 inFlute Count4Flute Helix Angle45oRadial Rake Angle13oThreading Length25 mm0.9843 inThreading Chamfer TypeC = 2-3xTPChip BreakerXMGradeB145SubstrateHSS-ECoatingPVD FeNCoolant Entry / ExitWithout / NoneConnection – Machine SideTap shank DIN-metric 14.00 × 11.00Connection Diameter (Machine Side)14.0 mm0.5512 inConnection Diameter Toleranceh9Weight0.142 kg0.3126 lbMaximum Regrinds0Release Date02/25/2014Release Pack ID14.1-Why Choose This Tool?

The Sandvik UNF 3/4”-16 spiral flute tap combines HSS-E toughness with a protective PVD FeN coating, ensuring durability and precise threading. Its 45o spiral flute design is optimized for blind holes, providing reliable chip evacuation and consistent accuracy in both CNC and manual machining operations.