Samurai Yari Head

Spear (Yari) Head designed to be used as part of Budo/Kobudo Training. 

Designed to be placed on top of a Bo Staff.

Measure of the Bo Staff - it can fit a staff with a diamater of 5.0 cm.

If your staff has different measures scale (with the uniform scale option checked, later you can modify the height).

The difference between the inner and outer diameter is of 0.5 cm. The X and Y diameters of the hole should be different by only 0.5cm too, this is because of the blade part. The important value is the smaller. 

So, if the X measure is, for example 4.5 cm, then it fits a staff of 4 cm. Scale based on it.

V1 is a yari head more similar to traditional yari. The other one is a basic head.