Our Gasket Cleaning Tools provide a significant improvement to conventional cleaning tools. These Tools swallow over the Top of the Wellhead and provides a window for visibility to confirm cleaning progress without removal. Damage to the Wellhead is mitigated by the Inherent Plastic nature of the Tool. The design features reduce the time significantly by eliminating the possibility of slipping off the wellhead & eliminates premature Tool removal until the Job is complete. The Concave nature of this tool allows cleaning Gasket Profiles when components inside are flush to the Top of the Whd. or Tbg. Hd. If you're wondering why these features are that important, simply watch an unskilled pilot.