E559NO6 - 1/4-28 Dormer HSS Straight Flute Hand Tap Set UNF

E559UNF1/4NO6

Dormer Pramet

  • £11.74


E559NO6 (UNF)

The most versatile taps for hand use or machine tapping through or blind holes in medium strength, medium carbon and alloy steel. Set including taps with 3 different chamfer lengths; taper lead which is ideally for short through holes, plug perfect for deeper through holes and bottoming best suited for blind holes.

Thread Diameter Size (TDZ) 1/4
Threads Per Inch (TPI) 28
Overall Length (OAL) 66.0mm
Thread Diameter (TD) 6.35mm
Threading Length (THL) 19mm
Connection Diameter (DCON MS) 6.30mm
Clamping Width (WSC) 5.0mm
Clamping Length (LSC) 8mm
Flute Count (NOF) 3
Pre-machined Hole Diameter (PHD) 5.50mm
Usable Length (LU) 30.0mm

E559UNF1/4NO6

E559NO6 - 1/4-28 DORMER HSS STRAIGHT FLUTE HAND TAP SET UNF