Excellent article by Paul Kirtley
Hand drill is an elegantly simple technique of fire-lighting.
Yet it is commonly seen as a more advanced technique of friction fire-lighting than the bow-drill method.
This is not necessarily the case.
It is just a different technique.
In terms of determining which technique may be more difficult in particular circumstances, you must also consider the context, the competence of the practitioner, the environment and the prevailing weather conditions.
The combination of these factors will determine the most appropriate method when one of these techniques must be relied upon for a fire.
Bow drill has become a central part of bushcraft teaching, certainly in the UK. There are several reasons for this.
Bow drill is the most widely-applicable technique of friction fire lighting. This is true in both terms of environmental conditions and available materials.
Read more HERE