The Type 100 was typically used with Type 97 Infantry Mortar which had a similar design to the French Stokes design. The round itself had a diameter of 81mm and was filled with around 0.45 kilograms worth of TNT explosive. Meanwhile, the total length of the shell was around 32.6 centimeters. A unique feature of the Type 100 was that it was interchangeable with the American M43 Mortar shell in the American M1 Mortar.