Some Hand-me-down Drill Bits

If you try to step drill in softer metals especially brass or bronze ,aluminum , or plastic. The larger drills will tend to grab and pull out of the tail stock.
 
Step drilling can be hard on the bit itself, Sometimes chipping the cutting edge.
 
So if I understand, by taking one big cut, the cutting load is distributed across the whole edge which in turn will maintain "rearward" force.
 
You must log in or register to reply here.
Back
Top