mhorowit wrote:
Roger wrote:
On Tue, 02 Jan 2007 10:10:23 -0500, Michael Horowitz
wrote:

There is also a V-Block with a series of drill holes that you just lay
on the bolt and have at it. This has the advantage, or disadvantage
(depending on how you look at it) as to allowing you to drill what
ever size hole you want as opposed to what is properly required.
You'll find these around machine shops.


Roger Halstead (K8RI & ARRL life member)
(N833R, S# CD-2 Worlds oldest Debonair)
www.rogerhalstead.com

Good morning Roger - problem with a v-block is that you still need to
insure the drill passes thru the center of the bolt; unless you know a
trick, the v-block will get me perpendicular to the shank, but does
nothing for centering the drill-bit (unless you know a secret???) - Mike

Place the v-block on the drill press, lower the drill bit until it
bottoms in the V, clamp the v-block down and every single cylindrical
object placed in the v-block will be drilled through the center.

Dan, U.S. Air Force, retired