Picote's range of Special Drill Heads allow for greater navigation through bends and even cast iron P traps. They can be used to unblock pipes to make space for larger tools or used in conjunction with the original grinding chains as pilot bits to easily cut into tough blockages such as tree roots, grease and tuburculation.  

A PVC Special Drill Head is also available - The safety ring gives the drill head the ability to be used in PVC, clay and lined pipes. This feature means more reliability with less risk of damage to the host pipe