Union Butterfield® 1712270 1641 RFD High Performance Forming Tap, 1/4-28 Thread, H4 Thread Limit

25833155 MFG #: 1712270
  • Brand: Union Butterfield®
  • Type: High Performance
  • Series: 1641 RFD
  • Measurement System: Imperial
  • Thread Size: 1/4-28
  • Thread Standard: UNF
  • Chamfer Type: Full-Bottoming
  • Thread Length: 5/8
  • Overall Length: 2-1/2
  • Class of Fit: 2B/3B
  • Shank Diameter: 0.255
  • Square Size: 0.191
  • Material: HSS-PM
  • Finish/Coating: TiN Coated
  • Thread Limit: H4
Union Butterfield® Forming Tap, High Performance, Series: 1641 RFD, Measurement System: Imperial, 1/4-28, UNF, Full Bottoming Chamfer, 5/8 in Thread Length, 2-1/2 in Overall Length, Class of Fit: 2B/3B, 0.255 in Shank Dia, 0.191 in Square Size, HSS PM, TiN Coated, H4 Thread Limit
  • Premium PM substrate provides superior abrasion resistance and edge strength
  • Premium PM substrate
  • Multiple lube groove design assures lubrication in the forming zone and eliminates the bui
  • Multiple lube groove
  • TiN coated for enhanced performance
  • TiN coated for enhan
  • The hard, smooth coating provides a greater lubricity, increases tool life and improves th
  • The hard, smooth coa
  • The entry taper is full bottoming style for blind hole tapping
  • The entry taper is f
Premium PM substrate provides superior abrasion resistance and edge strength
• Premium PM substrate provides superior abrasion resistance and edge strength
Multiple lube groove design assures lubrication in the forming zone and eliminates the build-up of hydraulic pressure in blind holes
• Multiple lube groove design assures lubrication in the forming zone and eliminates the build-up of hydraulic pressure in blind holes
TiN coated for enhanced performance
• TiN coated for enhanced performance
The hard, smooth coating provides a greater lubricity, increases tool life and improves thread flank finish
• The hard, smooth coating provides a greater lubricity, increases tool life and improves thread flank finish
The entry taper is full bottoming style for blind hole tapping
• The entry taper is full bottoming style for blind hole tapping