- Fits all 3/8" square drive wrenches
- Designed to ensure that bolts fit tightly and anchor securely
- Plug taps have 3 to 5 chamfered threads and are for general purpose applications
- 4-flute design ensures fast, easy chip clearance
- Hexagon dies are ideal for cutting right-hand external threads
- Hex head shape is designed for use in die stock and adjustable wrenches
