Nemo Underwater Impact Driver - 50M (Two 6Ah Batteries) Head Cushion This helmet meets or exceeds

This helmet meets or exceeds all standards established by Dive Lab of Panama City

5/8" x 11 UNC and 1-1/4" x 7 UNC and G 1/2" connecting threads are standard

200lb 55in 60in 20in x 15in x 9

Kirby Morgan 510-450 O-Ring

Nitrox compatible to 40% oxygen out-of-the-box

Nemo Underwater Impact Driver - 50M (Two 6Ah Batteries) Head Cushion This helmet meets or exceedsThe Nemo Impact Diver is the world's first waterproof cordless impact diver that allows commercial divers, construction workers, and HVAC technicians to easily carry out a range of fastening applications both underwater and on dry land. The torque on the Nemo Impact Driver gives you the power you need to drive large or long screws into a variety of surfaces. The Impact Driver has a maximum operating depth of 50M (164ft) and a salt water resistant