Thread Diameter : UNF 5l8 18 XFXCH Suitable for UNC UNF UNEF UN Right Hand Taps and Die Set 2 HSS Hand Tap Bits 5/16 3/8 7/16 1/2 5/8 3/4-18 20 24 28 40 Drill bit Industrial & Scientific gaby-fey.com
UNC UNF UNEF UN Right Hand Thread Tap And Die Set 2pcs HSS Hand Tap Drill Bit 5/16 3/8 7/16 1/2 5/8 3/4-18 20 24 28 40-UNC 5l16-14 : Amazon.co.uk: DIY & Tools
UNC, UNF, & UNEF Thread ANSI B1,1 PDF | PDF | Cutting Tools | Metalworking
Industrial Drill Bits XFXCH 1 Piece for UN UNC UNF UNEF 5/16 3/8 7/16 1/2 5/8 3/4 Thread Die Thread Tool Right Hand Screw Die Drill bit Thread Diameter : UNC 1l2 14 gaby-fey.com