Sharpening a giant drill - GIF

[ToolTalkBot]

Sharpening a giant drill.




Previously:

Angle grinder drill sharpening attachment - GIF
Drill bit sharpening jig - video
Mini plane for sharpening pencils - video
Post sharpening machine - video
Reel mower blade sharpening machine - GIF

[bob_3000]

How many guys does it take to hold the drill itself?

[BuffaloJohn]

I think I have to call BS or should I say AI on this.

The drill shows a round shaft and maybe a taper since there is what looks like the tang of a morse taper. The largest twist drills seem to be about 90mm or 3in diameter and this exceeds that by a bunch. Also, the guy is holding it rather than it being in a fixture.

Maybe it is just an advertising model, but a solid hunk of steel that size would weigh more than that guy could handle. A 6" diameter (the image looks larger than that) 6ft long of 1018 is over 575 pounds. Even if it was only half that weight because of the twists, whipping a 300 pound hunk of metal is BS or AI...

[jimboe]

I don't like the angle, do it over

[hemmjo]

also, look at that tiny drive tang on the back end and that small taper.

Something not right there.