Chainsaw, Concrete Rock Boss Catalog Tools Chainsaw, Concrete Rock Boss Manufacturer : Stihl SKU : 76-066-01 Model Number : GS461 Description STIHL GS461 Rock Boss concrete chainsaw. Cuts up to 12" of depth. 16" Bar, Chain must be purchased separately by renter. 76.5cc Two-Stroke engine, 16.8lbs. Delivery available, call for pricing. Rates Rental Rates Day $125.00 Week $435.00 Request Availability