1-3/8"-12 UNF HSS Bottoming Tap Quantity:1 The bits are made from

The bits are made from hardened 8660 steel (HRC 55–58) and finished with a zinc phosphate conversion coating that provides lasting corrosion resistance without altering dimensions or flaking

and TR triple square bit sockets in standard and long lengths

while the interior is protected against rust with clear coat

one side has a 2 to 3 thread chamfer for threading and the other side has a 1 to 1-1/2 thread chamfer for threading close to a shoulder

1-3/8"-12 UNF HSS Bottoming Tap Quantity:1 The bits are made fromProduct Description High Speed Steel Hand Taps are used to make new threads or re thread damaged and or jammed threads. Hand Taps are the most versatile taps for hand use and they are popular for use in general machine tapping. Appropriate for tapping the vast majority of materials in through or blind holed conditions. Hand Taps come in three styles Taper, Plug or Bottoming Taper Style: Starts the thread square with the workpiece. Plug Style: