7/16" BSF HSS Die Nut HARD WASHER 1 single item only- made of

single item only- made of specially selected tool steel

Goliath 5/16" UNC Hss L/H Bottoming Tap For producing precision Left Hand threads by hand tapping

Key-type drill chuck Prima S

Overall length L1 50

Stress concentration in the corners is eliminated

7/16" BSF HSS Die Nut HARD WASHER 1 single item only- made ofDie nuts are suitable for repairing damaged or crossed threads or clearing swarf from threads. When using a die nut it is not necessary to apply the same level of precise initial alignment required to form a new thread (i. e. with a die) as the nut will follow the existing threads. They are supplied as hexagon allowing them to be turned by a standard spanner or adjustable wrench without the need for a die stock.