• Heat-treated, durable steel with black oxide finish to resist corrosion
• Specially designed for 1 or 2 step models, fitting various flute designs on Fram, AC, Casite, Lee, Hastings, Motorcraft, NAPA, Purolator, STP, Pure One, Wix, as well as some Japanese and European made filters
• Use with 3/8" Dr. Ratchet