The Murphy Builders Site

Oh, Oh! So did you try to drill a big hole all in one pass? Try a small
diameter carbide # 40 or so, slow turning, heavy pressure, cutting oil, &
don't side load the bit to break it. Good luck

Dick Wampach SR-108 N331RW



-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
schaumr@dcsol.com
Sent: Monday, August 30, 2010 9:19 AM
To: rebel-builders@dcsol.com
Subject: [rebel-builders] Drilling through steel leaf springs:
work-hardening


Hi All,

Tried to drill through my steel tail spring this morning but managed to
render
half the hole "work-hardened" (not enough lube and/or cooling). What do I
do now? Carbide tipped bits? Other bits?

Hope someone can help me avoid buying a new tail spring!!

Rob
Rebel 786



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