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- Primarily designed for tapping blind holes
- Lube Groves provide a path for lubrication and act as vents to relieve pressure in blind hole tapping
- Recommended for a wide variety of ductile materials
- Ground Threads
- Made from Premium High Speed Steel and TiN Coated
- Thread Length: 9/16
- Size: 4-40-H3
- Total Length: 1 7/8
