Century Drill Century Drill 93202 1/4-18 National Pipe Thread 7/16 Inch Bit

Century Drill Century Drill 93202 1/4-18 National Pipe Thread 7/16 Inch Bit 1/4-18 national pipe thread tap with 7/16 drill bit combo pack. precision cut threads accurately formed for consistent exact threading. heat treated and tempered for file hard threads and longer useful life. designed for hand cutting applications. national pipe thread tap sizes for internal threading on all types of pipes.