Dormer Pramet

Union Butterfield® 1586 Regular Spiral Flute Tap, Imperial, 1/4-20, UNC Thread, 2 Flutes, 3B, Bottoming, HSS, Bright

PREDOR 6007841
$13.90 / EA
Out of Stock
  • Material: High Speed Steel
  • Chamfer Type: Bottoming
  • Series: 1586
  • Shank Diameter - Decimal: 0.255 in
  • Shank Diameter - Metric: 6.477 mm
  • Size: 1/4 in -20
  • Thread Length: 1 in
  • Thread Standard: UNC
  • Overall Length: 2-1/2 in
  • Finish: Bright
  • The spiral flute design effectively draws chips out of the hole
  • Excellent choice for non-ferrous applications
  • 5/16 in square length
  • 30 deg spiral
  • #7 tap drill size
  • 0.191 in square size
  • H3 thread limit

Union Butterfield® Spiral Flute Tap| Regular| Series: 1586| Measurement System Imperial| 1/4-20| UNC| Bottoming Chamfer| 2 Flutes| HSS| Bright| Class of Fit: 3B| Right Hand Cutting| 1 in Thread Length| 2-1/2 in Overall Length| 0.255 in Shank Dia