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ship auger tearing wood

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Forum topic by Karda posted 07-11-2020 06:36 AM 474 views 0 times favorited 18 replies Add to Favorites Watch
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Karda

2367 posts in 1362 days


07-11-2020 06:36 AM

Hi, i drilled some dog holes in my 3 inch thick bench top The bit tore up my top but i need more holes is there any way I can stop the bit from splintering when it starts to cut thanks


18 replies so far

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CaptainKlutz

3374 posts in 2303 days


#1 posted 07-11-2020 07:01 AM

Clamp a drill template made of 2 layers of MDF or plywood on top with same size guide hole drilled in it.
The clamping pressure will help to keep the fibers compressed and not lift as you cut the hole.

If you want clean exit holes, clamp a backer board to bottom too. wink wink

Also want the drill bit to be sharp and clean.
Dull/dirty bits will make ragged edges.

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

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controlfreak

960 posts in 410 days


#2 posted 07-11-2020 11:57 AM

sounds like the side cutters or spurs are not sharp or have been filed down to where they are not slicing the sides prior to the base blade tearing out the interior of the hole. I bought a special file made for sharpening ship augers but have no idea where I put it.

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ibewjon

1781 posts in 3602 days


#3 posted 07-11-2020 01:46 PM

It is probably dull, but I never think of a ship auger as a precision tool. We always use them for drilling studs or utility poles where finish is not important. The guide blocks should help, but for clean holes I use a forstner bit.

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Karda

2367 posts in 1362 days


#4 posted 07-11-2020 04:07 PM

a little less torn up will be good, I have sharpened it no change. I tore right throught my table top but when I tried to cut maple it stopped dead, not even one shaving

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higtron

258 posts in 3486 days


#5 posted 07-11-2020 04:13 PM

Is the screw on the tip in good shape sharp point threads looking good no burs, this also needs maintenance a small triangle file will do the trick

-- A friend will help you move, a good friend will help you move a body

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Karda

2367 posts in 1362 days


#6 posted 07-11-2020 06:10 PM

this a new auger the screw is good. I guess I got the wrong tool for the job. I cheated on these holes. I drilled about 3/4 of an inch with a forstner bit and finished with the auger, nice clean holes. Wish I had thought of that the first time

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Karda

2367 posts in 1362 days


#7 posted 07-15-2020 11:39 PM

I resharpened and tried this auger, it cut better but is split a 2×4 about halfway through, is this an end grain only tool or just for large beams

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ibewjon

1781 posts in 3602 days


#8 posted 07-16-2020 12:24 AM

To me, it is a rough cutting bit for electrical work in studs, or for drilling utility poles to make bolt holes. With the screw point to pull it through large wood and make a hole, not for finish work. And they can grab, twist the drill motor, and injure the operator quickly. Hold on tight, and brace if possible. For finish work, use a forstner bit.

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Karda

2367 posts in 1362 days


#9 posted 07-16-2020 01:47 AM

I am begining to get the idea, but I would never dare use this one for running wire because it would split the studs

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Jim Jakosh

24980 posts in 3914 days


#10 posted 07-16-2020 01:51 AM

Use a Forstner bit!

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

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Karda

2367 posts in 1362 days


#11 posted 07-16-2020 02:05 AM

yea, i am trying to figure out what I can use this for

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ibewjon

1781 posts in 3602 days


#12 posted 07-16-2020 11:45 AM

A small boat anchor. These bits don’t usually split a 2×4, unless drilling close to the end, or the lumber may have had a split you didn’t notice. ( As a retired electrician, I have drilled many thousands of holes with these bits)

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Karda

2367 posts in 1362 days


#13 posted 07-16-2020 03:49 PM

ok thanks, it was a short piece of scrap

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Ocelot

2553 posts in 3447 days


#14 posted 07-17-2020 01:56 AM

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Karda

2367 posts in 1362 days


#15 posted 07-17-2020 05:22 AM

ok thanks, I learned my lesson no more ship augers. Just out of curiosity, why do they tears so bad, and i can’t even get mine to cut maple, as soon as the cutter engages to stops dead

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