Apparatus for drilling bore holes; Apparatus for drilling wells; Apparatus for use in drilling; Apparatus for use in well drilling operations; Barrels for use with drilling rigs; Cement drills for drilling machines; Controlled trajectory drills (machines); Diamond drill bits for machines; Diamond tools for drilling for machines; Drill aligning instruments being machines; Drill aligning instruments for use with machines; Drill bits for machines; Drill bits for rotary power tools; Drill chucks (parts of machines); Drill cooling apparatus (parts of machines); Drill machines; Drill presses being machines; Drilling bits (parts of machines); Drilling hammers; Drilling heads (parts of machines); Drilling rigs (floating or non-floating); Drilling rigs for drilling off-shore wells; Drilling rigs for drilling wells on land; Drilling rods; Drilling tips for drilling machines; Drilling tools for use with machines; Drills being cordless electric power tools; Drills for machine tools; Electric drilling machines; Electric drills; Electric hand drilling machines; Electric hand drills; Ground drilling apparatus (machines); Hammer drills; Hydraulic wrenches for use on drilling rigs; Impact drills (machines or parts of machines); Implements (machines) for drilling; Industrial boring machines for horizontal drilling; Industrial drills (machines); Machine tools for drilling; Machines for drilling; Machines for drilling wells; Magnetic drill stands (parts of machines); Oil drilling rigs; Oil drilling tools; Pneumatic drills; Pedestal drilling machines; Portable drill stands for electric drills; Portable drilling machines (electric); Portable drilling machines (hand-operated); Portable electric drills; Power operated drilling tools; Power operated tools for drilling; Rock bits for drilling machines; Rock drills (machine tools); Rotary drills (machines); Self-driven machines for drilling; Tool bits for drilling (parts of machines); Tools for electric drills; Twist drills for machines; Rod Guides, Polymeric centralising guides; polymer based drill string stabilizers; polymer based centralizers for casing and tubing, sucker rods, drilling bits, drilling bottom hole assemblies, polished rods, production tubing, downhole pumping systems and other oil well drilling and completion equipment; polymer based drill pipe protectors, control line and sucker rod protectors, stabilizer sleeves, thread protectors, couplers, intervention tools, completion tools.