PRO PARTS PLACE Fastest shipping! Reasonable prices! Quality products! Great feedback! This sale is for (1) 18" 4 hole box blade shank. Not a lot to say here but the specs are listed below. 3/4" thick 5/8" pin hole Hole spacing: Measuring from the top going down the center hole is 1", 3", 5" and the last 7". 18" long Â· Disclaimer: We list model numbers and part numbers for references only. At times the same model may take different parts based on serial number breaks or manufacturers specifications. We list all the specifications on the part (size, width, length, thickness, etc.) and YOU must know what is needed on YOUR application. We canÂt possibly make it more known as to what you are receiving when you purchase.