3D printed tapered hoop setting gauge with black lines indicating the clearance dimensions. Imperial and Metric versions. The metric version uses the 'equivalent' clearance dimensions recommended by the WCF. Gently hold the gauge within the hoop, touching the uprights and read off the clearance dimension. Based upon standard ball diameter of 3 5/8". Accurate to 0.03mm at 20 degrees Centigrade. Dimensions 98x60x5.2mm.
