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DowelMax Drill Bit Size, cutting length

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Forum topic by DrTebi posted 06-27-2019 07:50 PM 119 views 0 times favorited 2 replies Add to Favorites Watch
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DrTebi

305 posts in 3685 days


06-27-2019 07:50 PM

Topic tags/keywords: dowelmax drill bit dowels jig

My dowelmax drill bit appears to have become a bit dull, and I am considering to replace it.

I could just get one from Dowelmax, but there is something that always bothered me about their bit: There is more cutting length than needed. At least I think there is, maybe I am misunderstanding something.

The problem is, that most of the time I will have to screw the drill stop at a position on the drill bit where the cutting flutes are. This makes it difficult to accurately position it, as well as to tighten it down properly.

Wouldn’t it be better if the actual cutting length of the bit was less, so that the drill stop would always sit on the shank of the bit, as opposed to the cutting flutes?

When using 2” dowels, set exactly at the same depth in each piece of wood, then a cutting length of 2-3/4” would be sufficient. Or even less. The cutter never needs to drill deeper than 1” for this application.

What do you think? Is there a particular reason that the cutting length of the dowelmax bit is much more than it will ever need to drill down? Chip extraction?


2 replies so far

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HokieKen

9946 posts in 1557 days


#1 posted 06-27-2019 08:03 PM

Probably exactly that, chip removal. But, it probably wouldn’t hurt to try a shorter bit. FWIW, you could sharpen the one you have (or have it sharpened) and keep it and buy a shorter one and have both on hand.

The diameter across the flutes should be the same as the shank diameter. So as long as the stop isn’t sloppy and you tighten the set screw on the large diameter, it should be just as effective on the flutes as on the shank.

-- Kenny, SW VA, Go Hokies!!!

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DrTebi

305 posts in 3685 days


#2 posted 06-27-2019 08:11 PM



Probably exactly that, chip removal. But, it probably wouldn t hurt to try a shorter bit. FWIW, you could sharpen the one you have (or have it sharpened) and keep it and buy a shorter one and have both on hand.

The diameter across the flutes should be the same as the shank diameter. So as long as the stop isn t sloppy and you tighten the set screw on the large diameter, it should be just as effective on the flutes as on the shank.

- HokieKen


I do always try to position the set screw across the flutes, but still find that it doesn’t always sit well, or at least it’s hard to get it just right.

Chip removal. Yep, that’s what I suspected… I think out of curiosity I may just try a shorter bit one of these days anyway.

I’ve never sharpened drill bits… it probably has a bit of a learning curve :/

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