Proper handling and use of threaded drilling tools require selection of appropriate wrenches for tightening and loosening connections. Our wrench provides an ergonomic, light, safe, comfortable to handle action without compromising its great gripping capacity. The design of this wrench allows tightening and loosening of thin wall core drill bits, core barrels, rods and casings without risk for damage. It is important to use recommended wrenches, to avoid risk of equipment damage. Always use wrenches in pairs.