2" Relton Wood Saw CompleteFeatures and Benefits: Relton has been manufacturing high quality brazed carbide hole saws in the U. S. A. for over 50 years Each hole saw has actual carbide teeth brazed into the steel body Can be used dry or wet, with hand held or in a staionary drill Can be re sharpened or have teeeth replaced as needed If you job requires a large number of holes, lower your cost per hole with a Relton hole saw, if you burn up high speed hole saws, or if bi metal