Drill bits knowledge
How to Drill Effectively
Successful drilling involves three elements:
1)forming a chip
2)accommodating a chip
3)evacuating a chip
Use a split-point drill possible.
Use a split-point drill if possible.Split -point begin removing material on contact and drill more efficiently.
WARNING:Two-flute drills should not be used to enlarge pre-existing holes.
Drilling the Hole
Use the proper feed rate.
Avoid the tendency to overspeed and underfeed.
Use low speeds and light feeds for hard materials.
To decrease drilling effort required ,used a split-point drill.