HB12 Handiburr® Rethreader M4 x 0.7

The Halls Handiburr Rethreaders are based on a high-speed steel tap permanently fitted with a handle. They are designed principally for cleaning out the fixing holes in socket switches or conduit boxes as these often have malformed threads or are blocked by plaster or cement.

The Halls HB12 Handiburr Rethreader has the following specification:

Size: M4 x 0.7.