<div dir="ltr">i "drill" them with a diamond bit on a dremel. they are fairly tough steel, but the case hardening is only about 0.040" deep<br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div>Terry<br><br></div></div></div></div></div></div></div></div></div></div>
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