Gearwrench Brake Resetting Gauge – GW3377

• Used to set the proper clearance between brake lining and drum prior to assembly
• Inside calipers measure drum diameters and outside calipers transfer measurement to brake shoes
• Knurled knob locks tool at measurement
• Diameter range: 6-1/2″ to 14-1/4″
• Calibrated in 1/32″ (1mm) increments