Union Butterfield® 1712221 1641 RFD High Performance Forming Tap, #4-40 Thread, H3 Thread Limit

25833247 MFG #: 1712221
  • Brand: Union Butterfield®
  • Type: High Performance
  • Series: 1641 RFD
  • Measurement System: Imperial
  • Thread Size: #4-40
  • Thread Standard: UNC
  • Chamfer Type: Full-Bottoming
  • Thread Length: 5/16
  • Overall Length: 1-7/8
  • Class of Fit: 2B/3B
  • Shank Diameter: 0.141
  • Square Size: 0.11
  • Material: HSS-PM
  • Finish/Coating: TiN Coated
  • Thread Limit: H3
Union Butterfield® Forming Tap, High Performance, Series: 1641 RFD, Measurement System: Imperial, #4-40 Thread, UNC Thread Standard, Full Bottoming Chamfer, 5/16 in Thread Length, 1-7/8 in Overall Length, Class of Fit: 2B/3B, 0.141 in Shank Diameter, 0.11 in Square, HSS PM, TiN Coated, H3 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 f
  • The entry taper is full bottoming style for blind hole tapping
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