Listing is for one  used gear cutting hob Manufactured
by  Norris of United Kingdom.

Pitch 3/16 circular pitch   Pressure angle 20 degrees

single start right hand.
10 mm bore .

40 mm diameter 25 mm wide.

Cutting depth .1287 inches

Pictures are part of the description

Many other hobs for Mikron machines in stock

too many to list please enquire.