[HBR] HBR-13 Progress
Walt Hutchens
waltah at earthlink.net
Sun Apr 6 20:55:36 EDT 2014
Whitebear1122 said:
> Are you able to get accurate location for large bits like 3/8" or
> 1/2"? The small ones are good but I seem to get more error with the larger ones.
With the big ones on a soft aluminum chassis results aren't going to
be very good. Depending on the precision that's needed I may use a
reamer or a file to enlarge a 5/16" hole. At 1/2" and up I have
socket punches for most sizes and I drill a bit oversize for the punch
screw and center it using the marks that are (usually) on the sides of
the punch.
Walt
KJ4KV
More information about the HBR
mailing list