Miter gears are one kind of bevel gears where in fact the two rotational axes intersect. When talking about narrow definition of bevel gears with capability to increase or lower speed, miter gears do not have that ability due to the pair’s same number of tooth. Their purpose is limited to the change in transmission path. Because they are a type of bevel gears, the basic characteristic of bevel gears can be found such as presence of gear forms of straight cut, spiral cut and types.
Also, because the shafts can be set to any kind of angle, generally there are miter gears with non-90 degree (non-perpendicular) angle called angular miter gears. Ever-power is capable of making angular miter gears with shaft angles in the number of 45 to 120 degrees.
Because a pair of right tooth miter gears gets the same quantity of teeth, with the exception of small differences such as collection screw holes and key methods, the same two 
gears may mate with one another. However, regarding spiral miter gears, even when the number of teeth will be the same, the twisting directions will vary. Therefore, the same gear can’t be meshed together, and it is required to pair the right and remaining handed pairs.
Bevel gears are classified in miter gear china various types according to geometry:
Right bevel gears have conical pitch surface and teeth are straight and tapering towards apex.