The 12", two-pack item offers an 80-tooth fine finish blade as well as a 44-tooth general purpose blade. An anti-friction coating keeps the blade cool while cutting and resists corrosion & gumming. Laser cutting technology creates the blade from 100% sheet steel to ensure a stable blade that increases cutting accuracy. 12" blades are ring tensioned to further stablize the blade. Laser cut vibration slots minimize wobble and warping during use. A thin kerf design delivers faster cuts as well as more cuts per charge when using a cordless tool. The 80-tooth fine finish blades ATB tooth pattern minimizes tearout in the cut material.