Features and Benefits:

• Removes truck oil filters from 3-3/4" - 4-1/2" (95 to 115mm)
• Fits ford 6.9-L Diesel oil, fuel filters and most Mack truck filters
• Caution: Wear eye protection
• Do not use with power tools

Wrenches are designed for high torque requirements of truck filters and used with 1/2" square drive tools.  They have 1-1/2" wide bands for added strength and increased grip area.