Qualtech Hex Die, Standard, Series: DWT, Measurement System: Metric, M39x4 Thread, Right Hand Thread, Carbon Steel, Bright.
Features
- Carbon steel hex dies are for dressing over bruised or rusty threads, they are the most cost effective rethreading tool available
- No special holder is required for this type of die, any wrench large enough will suffice
- Ideal for maintenance in the shop or field