The Ultimate Tool For Replacing the Nipple Cup Seals on Your Ford 6.0L Diesel Engine! Over a year in development & testing, the best tool is finally here. Designed to withstand harsh daily use in a shop environment. We built this tool to last a lifetime & stand behind it 100%. The other tools on the market are rated for "Hand Use Only". You can use ours with your 1/2" impact wrench. We have put this tool through grueling impact and maximum torque torture tests. It can withstand up to 500Ft/Lbs of torque. Best when used with our Heavy Duty Viton Blend O-Rings & Bullet Proof Nipple Cups(coming soon).