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Drill stops - do they work?

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Forum topic by unclearthur posted 01-31-2019 04:19 AM 1172 views 0 times favorited 25 replies Add to Favorites Watch
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unclearthur

286 posts in 2328 days


01-31-2019 04:19 AM

OK, I know this isn’t a major issue, but I am annoyed at these things:

They:
- go crooked when you tighten the locking screw
- slip when you actually use them
- snap your drill bit in two if you tighten the locking screw too much.

At least thats my experience with my $6 for 5 drill stops from Amazon.

Do the more expensive ones work any better?


25 replies so far

View mtnwalton's profile

mtnwalton

60 posts in 1566 days


#1 posted 01-31-2019 04:24 AM

Those are set collars used in industry as a stop for the size shaft their hole is, not intended for use on drill bits. However if you size them carefully and locate the set screw properly they can be used as such

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unclearthur

286 posts in 2328 days


#2 posted 01-31-2019 04:34 AM


Those are set collars used in industry as a stop for the size shaft their hole is, not intended for use on drill bits. However if you size them carefully and locate the set screw properly they can be used as such

- mtnwalton

Amazon says differently!

How do you locate the set screw properly? Maybe I’m doing something wrong?

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mtnwalton

60 posts in 1566 days


#3 posted 01-31-2019 04:40 AM

Not the first time Amz has been wrong. I’m a retired machinist 38 years and at least in this part of the country they are called set collars.

locate the set screw on the outer part of the flute. Not ideal, but it works

View firefighterontheside's profile

firefighterontheside

20631 posts in 2396 days


#4 posted 01-31-2019 04:47 AM

I find masking tape works just as well.

-- Bill M. "People change, walnut doesn't" by Gene.

View Rayne's profile

Rayne

1243 posts in 2079 days


#5 posted 01-31-2019 05:01 AM

You need something like this. The set screw doesn’t sit against the drill bit. These collars get tightened around the bit itself. The link is just an example. I’m sure there are better versions of this.

https://www.amazon.com/Aluminum-Stop-Collar-Set-Superior/dp/B06XTD5KXB/ref=sr_1_1_sspa?ie=UTF8&qid=1548910823&sr=8-1-spons&keywords=drill+bit+stop+collar&psc=1

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Fred Hargis

5802 posts in 3033 days


#6 posted 01-31-2019 11:34 AM

I have the split ring design and like them much better for the reasons you described.

-- Our village hasn't lost it's idiot, he was elected to congress.

View John Smith's profile (online now)

John Smith

2049 posts in 703 days


#7 posted 01-31-2019 11:46 AM

I have a set of those “collars” with the hex set screw that I have not
used in decades – ever since I found masking tape. (as Fire stated).

(free plus postage to anyone that wants a nice set of vintage collars).

.

-- I am a painter. That's what I do. I paint things --

View Gene Howe's profile

Gene Howe

11870 posts in 3968 days


#8 posted 01-31-2019 12:11 PM

Tape does work. So does a piece of scrap, if your boring a bunch of holes.
I’ll add my set to John’s. Practically unused.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View RobHannon's profile

RobHannon

320 posts in 1070 days


#9 posted 01-31-2019 01:24 PM

I gave up on the collars in favor of tape as well. If I need a precise depth I sneak up on it or use the drill press. Only stop on a bit that I have found to be useful is the one that is integrated in my countersink.

View Nubsnstubs's profile

Nubsnstubs

1626 posts in 2270 days


#10 posted 01-31-2019 02:18 PM

Use a small piece of wood. Drill through it, then insert the bit into the chuck measuring how much the drill bit protrudes and tighten the chuck. If the bit is too long, get a thicker piece of wood. Math is your friend on a situation like this. Besides, wood on wood is a lot friendlier than metal on wood. I would use wood stops instead of the metal, but also use tape if the depth is not precise.
I have a bunch of these when working in aviation, but rarely use them in wood working. They are collecting dust like others mentioned
https://www.mscdirect.com/product/details/43234004 ................... Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

View HokieKen's profile

HokieKen

11397 posts in 1678 days


#11 posted 01-31-2019 02:18 PM

In order for a stop to be effective on a drill, it needs to be precisely sized to fit that size drill rod and have a clamping action rather than a set screw. Even then, 99% of the time, masking tape is just as effective. I have a set of collars but I’m not as generous as John and Gene. They may yet find a purpose in my shop ;-)

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

View Fresch's profile

Fresch

454 posts in 2461 days


#12 posted 01-31-2019 03:12 PM

Put the stop on the shaft then Stack washers.
Or put it in your Shopsmith adjust the travel and have at it!

View Gene Howe's profile

Gene Howe

11870 posts in 3968 days


#13 posted 01-31-2019 05:01 PM



In order for a stop to be effective on a drill, it needs to be precisely sized to fit that size drill rod and have a clamping action rather than a set screw. Even then, 99% of the time, masking tape is just as effective. I have a set of collars but I m not as generous as John and Gene. They may yet find a purpose in my shop ;-)

- HokieKen


When that purpose is found, please share it. In the meantime, my offer stands. Not generosity, just house cleaning.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View HokieKen's profile

HokieKen

11397 posts in 1678 days


#14 posted 01-31-2019 05:04 PM


In order for a stop to be effective on a drill, it needs to be precisely sized to fit that size drill rod and have a clamping action rather than a set screw. Even then, 99% of the time, masking tape is just as effective. I have a set of collars but I m not as generous as John and Gene. They may yet find a purpose in my shop ;-)

- HokieKen

When that purpose is found, please share it. In the meantime, my offer stands. Not generosity, just house cleaning.

- Gene Howe

Will do Gene. Please don’t hold your breath though ;-)

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

View Sparks500's profile

Sparks500

255 posts in 870 days


#15 posted 01-31-2019 05:30 PM

I tried all the different drill stops and realized, much like half the stuff at woodworking shows, it’s snake oil.
Masking tape. Leaves no marks, works perfectly, costs nothing.

KISS method is always the best.

-- A good day is any day that you're alive....

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