This unit comes standard with a powerful 15HP 3PH, 220V or 440V (specify voltage at time of order), 2500 at spindle motor. This product has applications in the following industries: Energy, OilNatural Gas, PetroChemical, Knife Manufacturing, Automotive, Metal Foundries, as well as many other Manufacturing and Fabrication environments. The KM20AS product information: 16, 18, 20 arm assembly15 hp, 3 ph (220440 60 hz), 20 HP, 3PH (220440 60 hz) OptionalSingle 4 bolt trunnion mount1 arbor12 round guardAbrasive use onlySpindle RPM 2500Less wheelsPlease specify voltageWeight: 500 lbs.Made in USA! See more at: http:www.kalamazooind.comproductsabrasive-sawskm20as-abrasive-saw#sthash.TYVc7159.dpufKM20AS, Arm Assembly, 20 made-in-usa-medalNew Products BrochureDownload Catalog HereDownload Flyer HereOnline CalculatorKalamazoo Industries - Made in the USASubscribe to our mailing list* indicates requiredEmail Address *First NameLast Name- See more at: http:www.kalamazooind.comproductsabrasive-sawskm20as-abrasive-saw#sthash.5JPDTx9h.dpuf