Qualtech Carbon Steel Hand Tap Set

7/16″-20 Carbon Steel Tap Set Used to re-thread damaged and/or jammed threads May also be used to thread mild steels Hand Taps come in three styles Taper, Plug or Bottom. Taper Style: Starts the thread square with the workpiece. Plug Style: Generally used in thru holes. Bottom Style: Generate the thread to the bottom of the hole. A tap set contains 1 taper, 1 plug and 1 bottoming tap.