Drive Tube Assembly HEL 600 The TSA 500 includes a

The TSA 500 includes a built-in fast-stop brake

It is sometimes described as a knee roller or knee ascent kit in arborist discussions

Upgrade your chainsaw with a Tsumura bar and discover the difference precision engineering can make

rigging specialists and rescue teams

Ideal for routine maintenance or replacing worn spikes

Drive Tube Assembly HEL 600 The TSA 500 includes aGenuine STIHL Drive Tube Assembly (OEM: 4243 710 7123) for use with STIHL KM kombi system power heads fitted with a drive shaft extension. This assembly transmits drive from the power head to the cutting attachment via the inner shaft. Available from Gustharts, authorised STIHL dealer.