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HF TIN bits

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naumuk(at)alltel.net
Guest

Posted: Fri Jul 06, 2007 5:54 pm Post subject: HF TIN bits

All-

     I've had two 10 packs of HF TIN  A4 drill bits laying around in my workbench for some time. Just tried one for  the heck of it. They work great! $.99 a 10 pack on sale, but you'll be lucky to  find them in stock. I walked around with a raincheck in my wallet for  months.

     You ever get the feeling HF is a  commie front directed at homebuilders? The latest internet flier offers safety  wire pliers, cable cutting pliers, ratcheting terminal crimpers- all the weird  stuff no one else on the face of the earth would have a use for!

                                           do  not archive

 Bill Naumuk

HDS Fuse/Corvair

Townville,  Pa

   [quote][b]

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planecrazydld(at)yahoo.co
Guest

Posted: Sat Jul 07, 2007 3:25 am Post subject: HF TIN bits

hey Bill;



I also have been using the HF bits quite a bit because of the sale price. I have noticed that they tend to wander and drill an oversized hole - but they work great to predrill for #40 clecos before drilling with #30 drill for rivets.



Bill Naumuk <naumuk(at)alltel.net> wrote:[quote]       All-

     I've had two 10 packs of HF TIN  A4 drill bits laying around in my workbench for some time. Just tried one for  the heck of it. They work great! $.99 a 10 pack on sale, but you'll be lucky to  find them in stock. I walked around with a raincheck in my wallet for  months.

 [url=http://us.rd.yahoo.com/evt=48226/*http://new.toolbar.yahoo.com/toolbar/features/norton/index.php]Get the free Yahoo! toolbar[/url] and rest assured with the added security of spyware protection.   [quote][b]

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naumuk(at)alltel.net
Guest

Posted: Sat Jul 07, 2007 5:45 am Post subject: HF TIN bits

Dave-

     They probably don't have a lot  of control over the TIN process, because I miked the bit before using it and  it's a couple of thou under an ACS bit. For that reason, I haven't used them for  finish work, either. I'm just amazed that they cut as well as they do for a dime  apiece.

                                           do not archive

 Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

 [quote]   ---

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n4546v(at)mindspring.com
Guest

Posted: Sat Jul 07, 2007 6:43 am Post subject: HF TIN bits

I've tried a a few HF bits and found many of the  tin coated that come in sets have a poorly sharpened tip that is not centered  causing them to drill oversize.  Also have found many that are just not  straight.   Probably depends on which ChiCom factory produces them.   Just drill a test hole first in scrap before proceeding to your valuable  parts.

  

 Ten cent drills may or may not be a  bargain!

  

 Regards,

  

 Randy Thwing, Las Vegas  do not  archive

   [quote][b]

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n4546v(at)mindspring.com
Guest

Posted: Sat Jul 07, 2007 6:56 am Post subject: HF TIN bits

Tin coating of cutting tools is only couple of ten  thousandths thick at the most, if the drills measure undersize, it's because  they were ground undersize.

  

 Regards,  do not archive,

  

 Randy, Las Vegas

 [quote]    

   Subject: Re: HF TIN    bits

   



   Dave-

       They probably don't have a lot    of control over the TIN process, because I miked the bit before using it and    it's a couple of thou under an ACS bit. 

[b]

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planecrazydld(at)yahoo.co
Guest

Posted: Sat Jul 07, 2007 7:02 am Post subject: HF TIN bits

I agree on their utility Bill. While they do mike at about the right diameter, when I looked at the tips under high mag they appear to be nonsymmetrical - and that is probably why they walk and drill oversized holes. Again, not a problem if they are not the final hole.

   

  do not archive



Bill Naumuk <naumuk(at)alltel.net> wrote:

  [quote]    Dave-

      They probably don't have a lot of control over the TIN process, because I miked the bit before using it and it's a couple of thou under an ACS bit. For that reason, I haven't used them for finish work, either. I'm just amazed that they cut as well as they do for a dime apiece.

                                         do not archive

  Bill Naumuk

HDS Fuse/Corvair

Townville, Pa

  [quote]  ---

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