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Discussion Starter #1
Hey guys ...wondering if anyone would share what they used to countersink the mounting holes for their lexan windows. Looking for professional results. Would a good drill bit work if used with care? Thanks for the tips.
 

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I used a wood countersink, just have to practice to get the depth right. Better too shallow and just go a little at a time.
 

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FUCKING ASSHOLE SINCE '61
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Don't use a drill bit!!!

You can tear up the lexan, and the drill end is 135*

Yopu want the same degree countersink as the screws.

Counter sinks are available in 82*, 90*, 100*, and more,

look in a machine tool supply catalog, MSC, RUTLAND, TRAVERS, etc.

A single hole countersink will work very well, used on a low speed drill.

Your Pal, Gary
 

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I use a micro stop countersink with a 82 degree bit. You can get them from aircraft tool places but they come with 100 deg. bits. I bought my 82 deg. bit from Bickel.
 

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Discussion Starter #7
Thanks much guys! I thought there had to be a better way then the drill bit! :)
 

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Please dont use a drill bit or a counter sink with out stop/depth. I use countersinks all the time and consistency is tough to obtain without stop. I spend time to set up stop on drill press because it is easy to make a mistake.
 
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