5/8"-18 UNF HSS Left 4 Flute Taper Tap Quantity:1 and a keyhole slot helps

and a keyhole slot helps it lock into a tray

Part Number: EZ-21770

Size 2-7/8"

Part Number DWTSR1316-1440

Part Number: BIT-D/API

5/8"-18 UNF HSS Left 4 Flute Taper Tap Quantity:1 and a keyhole slot helpsProduct Description HSS reverse thread, also called left hand thread 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. 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. Brand Drill America Part Number DWT60835 Size 5 8" 18