Features and Benefits:

• Measures disc brakes and up to 12" on brake drums
• Includes set of clamps; 4 sets of set screws; 1 Allen Wrench; 1 set of 3-3/4" contact points; 1 set of 3/4" flat contact points in plastic tube.
• When measuring brake drums only, add 8" to measurement -- allows for long cone and jaw widths.
• For use with 6" and 8" calipers