is .002" that big of a deal?

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Holz Mechaniker

Holz Mechaniker

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gotta kit that needs a "V" drill bit. Now that is .377. a 3/8" is .375".

Is that two thousandth of an inch to allow for glue? Or can I just go ahead and us a 3/8" bit?
 
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I would think that you can just use the 3/8". Most drill bits drill the hole a little bigger than what the true diameter of it is anyway.
 
Depends on the drill bit and how you are set up to drill -- The key is to be able to get the brass tube and glue to fit well and hold the wood.

Odds are it will work just fine -- but putting the calipers on the tube and the drill bit may tell a story.

If too tight, a round file will likely give you a bit of clearance where needed.
 
Holz Mechaniker said:
gotta kit that needs a "V" drill bit. Now that is .377. a 3/8" is .375".

Is that two thousandth of an inch to allow for glue? Or can I just go ahead and us a 3/8" bit?
Click to expand...

if you look in the chart in the library. (general reference chart) you will notice that 3/8 and "v" are used interchangeably. in almost all sizes the drill allows for some clearance over the tube for glue, epoxy etc. the tube size for the 3/8" hole is .368" inches. i do not even own a "v" drill and use many of those kits in my work.
in other words, for almost every thing we do with wood, acrylics, etc, the 2 drills are really the same. not so some times in the machinist, metal world but for wood etc should be just fine.
 
You'll also find that drilled holes are generally way off from the drill diameter. They get hollowed out by chips and drill wobble and other factors. In the scheme of things, .002" won't even be noticed.
 
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