nrscroller Posted April 24, 2014 Report Share Posted April 24, 2014 HI all My FD Puzzle blades say I need to use a #71 wire bit. I did that, in my dremel plunge router and the blade will not go through the hole. Somebody is wrong. Why do they say to use a number 71 when it won't work? that is what it says on the FD chart for that blade I dropped to a 68 and it went thru fine. Interesting fact I thought I would point out. Bill Quote Link to comment Share on other sites More sharing options...
LarryEA Posted April 24, 2014 Report Share Posted April 24, 2014 Call Mike at the Flying Dutchman and ask him. He should be able to answer that. Quote Link to comment Share on other sites More sharing options...
dansnow Posted April 25, 2014 Report Share Posted April 25, 2014 A quick check online shows that a #71 drill bit is .026" dia. A #2 FD puzzle blade is .015, while a #3 is .031 so iin that case would not fit in the hole. Another thing is check the drill bit. I have found that in some of the less expensive drill sets the marked dia is more of a suggestion than the actual dimension of the drill. Quote Link to comment Share on other sites More sharing options...
Multifasited Posted April 25, 2014 Report Share Posted April 25, 2014 I am lazy ,and loose charts ,so for 10 Bucks a hf on sale I got D. calipers ,and go by that ,never been wrong yet Handy for all kind of things ,I keep one pair in both shops , Being an old fieldservice engr. never saw a print or a chart that was totally Accurate ,and rebuilt kits ,seldom complete and usually wrong (oh! You have one of those!) (Oh! Yeah !! I see your notation now !!) Well it's friday I can't get any thing shipped till monday ,if we have all the parts ! So I quickly learned trust but verify ,CYA !! Phantom Scroller and Rob Roy 2 Quote Link to comment Share on other sites More sharing options...
ike Posted April 25, 2014 Report Share Posted April 25, 2014 I check all my drill bits with a Electronic Caliper I got from Harbor Freight for $10 and they are off by .0005. When using ply wood I have to drill the 2nd time from the back so the Blade won't hang up. It's matching the Blade with the Drill bit. IKE Quote Link to comment Share on other sites More sharing options...
Multifasited Posted April 26, 2014 Report Share Posted April 26, 2014 Sounds like your splintering the ply wood as your drilling fragments are sticking out into the hole area and the second pass cleans them out not all ply wood comes from the same family or the same type wood ,or made and glued the same ,thats the only thing I can think of causing the problem ! Quote Link to comment Share on other sites More sharing options...
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