their are two types of drill bits one will chip and the other will cut, it all depends on the way a drill bit has been sharpened ? but all 1mm 2mm 3mm drill bits should drill at high speed so i was tort
----- Original Message ----
From: Aahz. <erickkilmer-at-comcast.net>
To: tanks-at-rctankcombat.com
Sent: Monday, 6 August, 2007 9:55:45 PM
Subject: RE: Phil's Tank... and drill bits [TANKS [TANKS]
> Metal should be drilled as slow as
>possible. As long as you see metal
>shavings. When you see long metal
>shavings you know you have found the >right speed and pressure. Oil will also
>help.
I respectfully disagree Will, drill RPM should be set by diameter of the bit and type of material. I had a friend whoes finger was cut to the bone by a long string catching on the chuck and essentially lassoing him. The right speed will make C shaped chips.
Aahz.