Surgical Push Button Handpiece 4 Hole A-1S45HP 1 Year Warranty on Handpiece 6 Month on the Bearings Surgical 45 °: This 45° head high-speed surgical hand piece features: -Ergonomic Design -Light weight reducing the amount of hand fatigue -Speeds up to 400,000 rpm -Economically Priced -Fully Autoclave -Eliminates air to the surgical site while allowing for proper cooling with non-atomized water spray