How to lengthen a drill bit

Lengthening a drill bit

History:

How to lengthen a drill bit
The rod that we use must be of equal thickness or smaller than the drill bit
We will reduce the drill bit and rod as I show below
Center the drill and rod, do it by eye.
Solder a point and check that it is well centered
We will correct and apply continuous points of welding
The drill bit will not be perfect ...
This technique does not guarantee the durability of the drill bit,
The drill bit will break with relative ease (By welding)
The weld must be lowered a little below the thickness of the drill bit
The test of fire
If the rod and drill bit are of the same thickness, with an angular profile is made well
Marxist Arrow de Twin Musicom está sujeta a una licencia de Creative Commons Attribution (https://creativecommons.org/licenses/by/4.0/)
Artista: http://www.twinmusicom.org/

Видео How to lengthen a drill bit канала Cruzdelasadas technical