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I'm trying to find a half or full-round file of a particular diameter, but it seems to be rarely mentioned (and when it has been, they've been much smaller than I'm looking for).

Are they just not made/advertised/sold this way because they're not expected to be used for such precision - or is there a different term for similar large instruments that might be available in a range of diameters?

  • It's a typically a metalworking term, but what you might try to search for is a "broach": ohiobroach.com/production-broaching.html – JPhi1618 Nov 19 '19 at 21:50
  • There is also a type of machinists tool called a reamer. These are available to a standard range of sizes and are designed to trim out a predrilled hole to a precision diameter. – Michael Karas Nov 19 '19 at 22:01
  • 1/2",1/4",3/16",7/32" ... all on the first page of Amazon having searched for round files. What size do you need? – Mazura Nov 20 '19 at 1:08
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    Here's everything you'd ever want to know about files : kmstools.com, and an infograph at the bottom that you can DL to identify files. – Mazura Nov 20 '19 at 1:12
  • @ Michael Karas , a ream will create a perfect hole the size of the team a tapered team is just that it might be the right size on 1 side but way small on the other. – Ed Beal Nov 21 '19 at 1:16
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The very asking of this question begs another couple of questions; namely your use and whether this is the best way to resolve this use.

Chainsaw sharpening files

Come in a variety of diameters in the rough neighborhood of 1/8".

  • Come on these are tiny for someone asking about files. If a specific size was given I missed it and may be wrong. Machine files come in many sizes and styles @mazura has the best comment at this point but I do have “bastard” round files some as tiny as 1/16 and my largest as a 1-1/2”.- – Ed Beal Nov 21 '19 at 1:13
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Files are not a precision tool so they come in a big variation of sizes. If you want a specific size there are numbered drill bits , letter drill bits and fractional drill bits , each drill bit above has a ream to make it exact size but a file is like using a shotgun a ream is a rifle and a tapered ream is a hand gun in my personal opinion.

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