Union Butterfield® 1712277 1641 RFD High Performance Forming Tap, 5/16-18 Thread, H5 Thread Limit

25833261 MFG #: 1712277
  • Type: High Performance
  • Series: 1641 RFD
  • Measurement System: Imperial
  • Thread Size: 5/16-18
  • Thread Standard: UNC
  • Chamfer Type: Full Bottoming, Full-Bottoming
  • Thread Length: 11/16
  • Overall Length: 2-23/32
  • Class of Fit: 2B/3B
  • Shank Diameter: 0.318
  • Square Size: 0.238
  • Material: HSS, HSS-PM
  • Finish/Coating: TiN Coated
  • Thread Limit: H5
Union Butterfield® Forming Tap, High Performance, Series: 1641 RFD, Measurement System: Imperial, 5/16-18 Thread, UNC Thread Standard, Full Bottoming Chamfer, 11/16 in Thread Length, 2-23/32 in Overall Length, Class of Fit: 2B/3B, 0.318 in Shank Diameter, 0.238 in Square, HSS, TiN Coated, H5 Thread Limit
  • Premium PM substrate provides superior abrasion resistance and edge strength
  • Multiple lube groove design assures lubrication in the forming zone and eliminates the bui
  • TiN coated for enhanced performance
  • The hard, smooth coating provides a greater lubricity, increases tool life and improves th
  • The entry taper is full bottoming style for blind hole tapping
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
TiN coated for enhanced performance
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