A precious relatively inexpensive 3/16 size nut driver. For tightening the spacer of the DOS / V personal computer. To use it for PC, grip is too fat, so overtorque is cautionful. There are 3/16 things and 5 mm things for PC spacers, so it is enough to actually prepare 5 mm objects. Since 3/16 is smaller, it is not possible to tighten the 5 mm spacer. On the contrary, since the tightening torque is low, there is no problem first. I do not agree with the application the first time but I think that the goods themselves are excellent goods for COSPA.