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Homemade Drill Bit Sharpening Guide

Drill Bit Sharpening Guide
Krafty on
Homemade drill bit sharpening guide constructed from a pair of hex-headed bolts mounted together.
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May 01, 2016 10:49 PM
Perfect example of where the solution is right under my nose, while I look hither and yon.
Dec 08, 2015 12:58 PM
It is so simple. Great idea.
Nov 28, 2015 6:10 PM
Well, I leave the bit in the drill. Take the drill and clamp it down at the bit's natural angle towards a table top. Next take a flat grind stone just under the angled bit tip. Power up the drill on medium speed for a few moments whilst moving the flat sharpening stone back and fourth. Easy job. Due note, ensure your bit(s) are center well in the drill chuck first.
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DIY Drill Bit Sharpening Guide - comment on how to build a Drill Bit Sharpening Guide - 10 comments
crazypj says:
Dec 21, 2016 5:52 PM
I first saw that using two nuts pinned together in 1974 while learning centre lathe. I was teaching 'machine shop' at MMI (Motorcycle Mechanics Institute) and showed many of the students, some who had been 'in engineering' for as much as 27 yrs. ( I think he may have been a CNC machine minder?). 120 degrees may not be 118 but a 120 degree sharp drill is far superior to a 118 degree blunt one. You have a sight line built in between the two nuts (or bolt heads) to judge if shank is lined up properly

Anonymous says:
Aug 21, 2016 4:02 PM
Would work if your angle is 120 degrees... The bits I commonly use are 118 and 135 degrees (though there are other angles available). I believe the poster below talking about 82 degree is confusing it with countersinks, most commercial grade hardware has an 82 degree countersink while aviation hardware is usually 100 degree. I haven't seen a standard bit that was 82 degree.

Anonymous says:
Jul 30, 2016 2:25 PM
This will not work, the stand American drill bit is 82 degrees while this checker will be 120 degrees, but in retrospect at least your angles will be even.

fonz says:
Jul 21, 2016 9:22 AM
Does it work?

fonz says:
Jul 21, 2016 9:22 AM
Does it work?

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