Would it be practicable to apply old technology such as MT
spindles here? Drills in most sizes still available with
MT1 and MT0 shanks. This would appear to give the closest
C/C distance possible.
(CLIP)
Another possibility would be threaded shank drills but
selection appears limited.
http://www1.mscdirect.com/CGI/NNPDFF...8732&PMCTLG=00
We offer both already. I'm just much more comfortable with a shank that is
going to stick around for a while with numerous suppliers.
The MT0, MT1, MT2, etc. female shafts all use an ASA or automotive shank to
make it happen reliably because the length of the tooling is non-adjustable
with a simple female MT spindle - and everyone in the high end drilling
business wants to be able to adjust the length of the tool to compensate for
re-sharpening, depth control, etc. I'm also not too comfortable with ASA
spindles because there are very few suppliers left. ER is everywhere
globally. ASA seems to have a metric and inch size issue as some European
countries use metric-sized tool holders that do not work with the standard
inch size I've run across most often.
The threaded spindle is also available, but we run into the same issue of
non-adjustable lengths, etc. Plus, there are at least two different standard
threaded sizes I've run across. 7/16-18 and another I forget... I've never
seen larger except for on custom jobs.
I don't know if this will work or not but... Here are some photos of MT
shank and threaded shank heads with the ASA adapter installed in the spindle
at the bottom left of the photo:
http://www.facebook.com/photo.php?fb...7302225&type=1
This page shows threaded spindles as well as two different quick-change
options:
http://www.facebook.com/photo.php?fb...7302225&type=1
This shows a typical wood application (it's worth seeing even for
metalheads) with ER32 spindles:
http://www.facebook.com/photo.php?fb...7302225&type=1
Someone want to let me know if these links work for non-Facebook users?
Regards,
Joe Agro, Jr.
(800) 871-5022
01.908.542.0244
Automatic / Pneumatic Drills:
http://www.AutoDrill.com
Multiple Spindle Drills:
http://www.Multi-Drill.com
Production Tapping:
http://Production-Tapping-Equipment.com/
Flagship Site:
http://www.Drill-N-Tap.com
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http://www.youtube.com/user/AutoDrill
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V8013-R