Perma-Coil #1221-304 Thread Repair Kit M4 x 0.7 Thread Size
1221-304- Thread Size M4 x 0.7
- Includes Tap. Coil Installation Tool & Inserts
- Use Drill Size 11/64" (Not Included)
- Coil Length 6.0mm
- Number of Inserts 12
- Helically coiled stainless steel inserts
- Fast, economical & permanent
- Restores threads to original size