.png)
Tweet
Newbee ? -- split point
Plz xplain split point. Is this just a notch in the middle of the web?
-
-
Pretty much. If you compare a split point with a regular drill, side by side...that's it. With the split point, the flat center that you have with a regular point is ground away by "splitting the point," so the drill cuts more easily and also tends to self-center better.
----------
Try to make a living, not a killing. -- Utah Phillips
Don't believe everything you know. -- Bumper sticker
Everybody is ignorant, only on different subjects. -- Will Rogers
There are lots of people who mistake their imagination for their memory. - Josh Billings
Law of Logical Argument - Anything is possible if you don't know what you are talking about.
Don't own anything you have to feed or paint. - Hood River Blackie -
These split points give a cutting edge clear to the middle, eliminates the chisel point.
Look a sharp one over closely, there are actually 4 cutting edges, 2 each side.Comment
-
rmatel:
Split points are ground more like a center cutting endmill. If you look closely you will see both cutting edges are parallel and inline with each other. They actually bisect the point - hence the term "split point".
There are other more complicated geometric forms for high performance drilling with carbide such as "S" points. For lowest cost drills are usually just a 4 facet cut - these are not split points and are common on very small drills.
Comment
Comment