Spotting drill angle

[Ken_Shea]

I am finding various angles for these (82,90,120) and am wanting to know the appropriate angle of spot drill for use with 135 degree drills.

Thanks
Ken

[wms]

Ken,

I use the 120 degree...as it will provide the best "nest" for most drill angles.

[Ken_Shea]

Thanks "again"

Ken

[3t3d]

I am finding various angles for these (82,90,120) and am wanting to know the appropriate angle of spot drill for use with 135 degree drills.

Thanks
Ken

I always use 90 degree spotting drills, and they are also usefull as a 45 degree
chamfering tool.
Really nice looking parts with a even chamfer all aorund them!

Pete

[Ken_Shea]

Hi Pete,
I was planning on getting a 90 degree, as well, for that very purpose, the 90 degree also make for easy DOC calculations.