Use gauge to set the proper clearance between linings and drum prior to assembly. Inside calipers measure drum diameters and outside calipers transfer measurement to brake shoes. Knurled knob locks tool at the required measurement.

Calibrated in 1/64" & 1 millimeter increments.

Range: 6.1/2" to 13.1/4"(165 to 337mm)

Barcode # 9322159016956