Tools & appliances corporation provides sdh and sdg two models self-opening die heads. These self-opening die tools are of simple design and a thread cutting tools for mass production with uniform and high accuracy. These self-opening die heads are suitable for cutting both right and left hand threads. The model sdh die heads are suitable for taking coventry chases, while model sdg die heads are suitable to take geometric style `d` chasers with 2 mm to 30 mm threading capacity in different sizes. The self-opening die heads are useful for applications in automatic and semi-automatic lathe machines, turrets, capstans and screw machines.
