This helmet features the lightweight durability of a thermoplastic shell with Small Window viewing area, with helmet flip up operation.  The Model 911P offers a horizontally positioned 2" x 4 1/4" lens with an aluminum front and our patented Zahnlok headgear.  Huntsman patented Zahnlok adjustment system allows the wearer to adjust the headgear in 1/16" increments to exact head size, simply by turning a knob.  The adjustment is automatically locked in with 50 meshing teeth to ensure a snug, comfortable fit that wont slip.  The system is durable and long lasting, because the teeth are automatically disengaged while the headgear is being adjusted.

A favorite with welders nationwide, the Big Window offers lightweight and nearly 24 square inches of viewing area.  We've taken a standard 5 1/4" x 4 1/2" welding lens and placed it vertically to give you the best possible view.  The Big Window helmet is made of tough, washable thermoplastic.  It includes our "contour-comfort" headgear featuring double lock locking devices and our patented Zahnlok adjustment.  Huntsman patented Zahnlok adjustment system allows the wearer to adjust the headgear in 1/16" increments to exact head size, simply by turning a knob.  The adjustment is automatically locked in with 50 meshing teeth to ensure a snug, comfortable fit that wont slip.  The system is durable and long lasting, because the teeth are automatically disengaged while the headgear is being adjusted.

The Huntsman Ratchet is the only system that both locks the adjustment you select in place and disengages the drive before resistance stress that can damage the gear rack is reached.