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- Primarily designed for tapping thru holes and blind holes with adequate depth
- 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
- Thread Length: 1 21/32
- Size: 1/2-20-H8
- Total Length: 3 3/8
