Steel oil filter wrench kit​ supplier & manufacturer

By Vernier calipers, to count the number of sides for the polygons below the filter ,which caled teeth, if it is an odd amount ,then measure edge-to-corner distance, even if it is even number , , then measure edge-to-edge distance, and then compare the below data list, whether there is no coupled models on the graph. The measurements error range is about 1MM, do not blindly purchase by compare the size on the graph;pls according to your own size, to determine buy a right size .