The basic structure was borrowed from the SA-110 prototype but with extensive modification to suit the new vehicle's purpose.

[3] Sisu military vehicles typically have a nickname in addition to the official model name.

However, the engineering department quickly changed the name to Raisu, from Raivaus-Sisu ("Clearance Sisu"), as 'Misu' was considered infantile.

[1] The mine clearing tool includes 82 hammers which are fastened to a rotating flail by chains.

The vehicle makes a 3.4-metre wide path and the clearing depth can be controlled manually or automatically.

The clearing flail is turned longitudinally and mounted on the top of the vehicle for during transportation.

[3] The vehicle is powered by air-cooled six-cylinder Deutz BF 6L 913 C turbodiesel engine.

[4] The armoured cabin contains seats for the driver and commander and is designed with NBC protection and to withstand a 10 kg explosion under the vehicle.