*These cup-type filters are made of 7 &
  16 gauge construction and are able to 
  withstand up to 85 ft. lbs. of torque.
*Cup-type design grips like a socket
  minimizing the possibility of crushing
  filters.
*Fits 3/8 or 1/2 square drive tool Coated
  with electro-black oxide finish for protection
  against rust.