M4x0.7 HSS Die Nut L2120175 Using the latest in engineering

Using the latest in engineering design and grinding capabilities

They can produce holes three times faster and cleaner than hole saws in sheet metal and have dramatically extended tool life too

Fits 1969 to 1991 Small Block Chevy Engines

32mm Spigot

M4x0.7 HSS Die Nut L2120175 Using the latest in engineeringM4 x 0. 7 HSS Die Nut Die 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.