The Lewis Multi Drill Universal Drive is a simple device that transforms the high revolutions per minute (RPM) of a chainsaw engine into low-speed torque. You can use this versatile chainsaw attachment as an auger to drill earth and ice, or as a wood drill for log home building and a wide variety of wood boring applications. It's also ideal for remote locations and construction zones where power is not available. It is designed to bolt onto your chainsaw just like a chainsaw guide bar and it only takes a few minutes to switch back and forth from one to the other. The oil-filled gearbox (or transmission) drives the output shaft and turns your wood drill or auger. It's that simple! This version will fit on any chainsaw because it uses a small mini-bar and short chain to mount on your chainsaw, exactly the same way your cutter bar does now.