[TowerTalk] Drill bits

jimlux jimlux at earthlink.net
Wed Mar 24 05:00:14 PDT 2010


Guy Molinari wrote:
> Hi all,
> 
>     I don't know why this is so hard.   I'm trying to drill out some hole on some 3/8" steel plates that I'm going to have galvanized.   I bought a 13/32" drill bit and it worked great for about 10 holes or so.   The problem is that I have about 140 more to go.   Any recommendations on a good quality drill bit?   
> 
Are you using a cutting lubricant?

Are you doing it in one shot, or starting with a small drill size and 
working up?

What speed are you running the drill at?  (It should be fairly slow, RPM 
wise..)

Are you using a drill press or hand drill?





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