[2] During the development and planning, it was decided that its capabilities should include: destruction of pillboxes, trench digging, mine clearing, barbed wire cutting, smoke discharge, mass decontamination, chemical weapons employment, use as a crane vehicle, as a flamethrower tank and as a bridgelayer.

[2] During December 1941, approximately 20 SS-Ki vehicles were transferred to the Philippines as part of the engineer unit of the 2nd Tank Division.

The suspension was made from two blocks of four roadwheels with two return rollers and no independent forward bogie, in addition to semi-elliptical leaf springs.

The turret was removed and replaced with a small commander cupola with fitted observational devices; two large claws used for mine clearing were placed in the front, while a winch designed to pull heavy objects was placed in the rear, and was directly powered by the engine.

[2] The SS-Ki was powered by a Mitsubishi I6 diesel engine, which provided 145 horsepower at 1800 rpm, allowing the vehicle to travel at a top speed of 37 km/h; this was in conjunction with a mechanical transmission.