3/4 arbor/hole (does not need a diamond knockout). Will cut a 4x4 in single pass. The item "Rare Vintage Military Contract SKILSAW SKIL SAW 10 Model 90860 Circular Saw" is in sale since Sunday, September 23, 2018.This item is in the category "Home & Garden\Tools & Workshop Equipment\Power Tools\Power Saws\Circular Saws". The seller is "whoisbedo" and is located in Garden City, New York. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Turks and caicos islands, Bangladesh, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Liechtenstein, Luxembourg, Monaco, Macao, Martinique, Nicaragua, Pakistan, Paraguay, Bahamas, Uruguay, Canada.