Are we talking about "clock Spring" material, or "Automobile leaf spring" we have scrounged? Al Messer --- JESSE LIVINGSTON <fernj1@xxxxxxxxxxxxx> wrote: > Spring steel can usually (noticed I said USUALLY) be > drilled by running the > drill very slowly, using plenty of thread cutting > oil and keeping a steady > and relentless pressure against the drill bit. If > the drill ever makes a > turn without removing metal the steel will instantly > case/work harden and > all forward progress will cease. This same system > works on stainless steels > that work harden when drilling. > > Unka Jesse > > > I wonder what I said? > > > > Punching it, "burning" through using a car battery > and electrode, and... I > > am sure there are other ways but my mind has gone > blank. > > Alan > > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email > to, > modeleng-request@xxxxxxxxxxxxx with the word > "unsubscribe" in the subject line. > __________________________________ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/ MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.