Widia 11601 Straight Flute Hand Tap, 1/4″-28, Plug, 4 Flutes, Unc
Straight Flute Tap, Thread Size 1/4 In.-28, UNF, Plug, Overall Length 2.5 in, High Speed Steel, Bright (Uncoated), Right Hand, Thread Length 1 in, 75 Percent Thread Drill Size 5.45 mm, Thread Limit Not Applicable, Class of Fit 2B.