Drill points
Drill points
(OP)
What is the standard for Drill Points / Drill Point Angles?
Is it required on the drawing per the current standard? I ask as the company I work for wants it shown on the drawing. (i.e pointing to the drill point via note and calling it out as a Drill Point Angle).
thanks.
Is it required on the drawing per the current standard? I ask as the company I work for wants it shown on the drawing. (i.e pointing to the drill point via note and calling it out as a Drill Point Angle).
thanks.





RE: Drill points
... but drills are available with other point angles, and there are good reasons to use them.
It only makes sense to specify a drill point angle if you are drilling intersecting blind holes, e.g. in a manifold, and you want to control the geometry of the cavity.
... or if the your boss tells you to.
Mike Halloran
Pembroke Pines, FL, USA
RE: Drill points
ASME Y14.6 mentions dimension to the drill point depth if necessary.
Nevertheless, if using drill with certain point angle is the only way to produce good part, then there is nothing wrong about specifying it on the drawing.
If it's more like general knowledge kind of thing, it may be appropriate to put it into notes.
RE: Drill points
RE: Drill points
It's typically not a good idea to specify the tool to be used. It may -seem- obvious to you that one would use a certain tool but it's rarely the case.
_________________________________________
NX8.0, Solidworks 2014, AutoCAD LT, Autocad Plant 3D 2013, Enovia DMUv5
RE: Drill points
Chris, CSWA
SolidWorks 14
ctopher's home
SolidWorks Legion
RE: Drill points
“Know the rules well, so you can break them effectively.”
-Dalai Lama XIV
RE: Drill points
There are some situations where it can matter (we had one here when a part was redrawn and significance of a poorly worded old note about jobber drill wasn't understood) however it's not that common if the drawing is otherwise done well.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drill points
RE: Drill points
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Drill points
Chris, CSWA
SolidWorks 14
ctopher's home
SolidWorks Legion
RE: Drill points