Pipe Modification for 9mm Filter?

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shane1

Starting to Get Obsessed
Nov 30, 2014
202
379
Connecticut, USA
I am interested in buying a Dracula Sandblasted (XL90) Fishtail (9mm) but I am unable to find one? Are there any places that will modify a non filtered pipe to accept 9mm filter?
 
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shane1

Starting to Get Obsessed
Nov 30, 2014
202
379
Connecticut, USA
Thanks! They have an XL02 which looks similar. They also have a 306. Any idea how they compare in size; either to each other and/or the XL90?
 

Nov 20, 2022
2,909
27,957
Wisconsin
Why? If you want a filtered pipe, buy one that is made for the filter IMO. I am frustrated by the opposite problem, I like a pipe, but it is bored for a filter. I rarely buy them because it changes the flow and draw of a pipe. I would have concerns about a second party modifying a new pipe when there are so many great filtered pipes for sale.

Sorry I didn't answer the question directly.
 
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Searock Fan

Lifer
Oct 22, 2021
2,547
7,153
Southern U.S.A.
If the pipe has a thick enough shank it could be done. However, just drilling it out is one thing, but drilling it out properly is another. The problem is you have to square off the drill bit at exactly 90 degrees from the top of the shank. If you're even a little off the stem won't seat flush. It would also be nice if the drill bit used is exactly the size of the tenon of the stem. You have to know what your doing. If you need a filter pipe I would suggest you just buy one. puffy
 

Hillcrest

Lifer
Dec 3, 2021
4,873
27,634
Connecticut, USA
They have XL90 filter pipes :

They have the smooth dracula:

and the sandblasted:

So they pretty much have what you want or will if you keep checking back. Their stock rotates.
 

shane1

Starting to Get Obsessed
Nov 30, 2014
202
379
Connecticut, USA
Thanks, I like the XL02 and 306 also. I already have an XL90 and it is one of my favorite pipes. I want something that is similar to that in size. Peterson get a lot of flac for their quality control, and deservedly so, but I have had about 60 pipes by various makers and I am down to 12, mostly Peterson. I just enjoy the way they smoke.
 
Jun 9, 2015
4,198
26,478
43
Mission, Ks
thehawsepipe.wordpress.com
My post copied from another 9mm filter addition query.

The short answer is no, it cannot be done. The long answer is yes anything can be done with enough time, money, & talent.

First you need to understand a few thing about 9mm filter pipes.
1. They tend to have larger shanks.
2. They have much larger tenons.
3. filter drilling is not just making the hole bigger, it also involves drilling to the correct depth , in both the shank and the stem.
4. The tenons in filter pipes are generally UHMW. Delrin. or Teflon.

To convert a pipe you need to cut out the old tenon and drill the bit for a sleeve tenon to the correct depth.
Glue in a UHMW, Delrin, or Teflon tenon sleeve. Then drill the shank to correct depth and diameter to accept a filter/filter tenon.

Most pipe tenons are somewhere around 7-9mm to start with so drilling an existing tenon is typically not possible. A filter tenon is usually around 12-13mm od, but even if you found a pipe with a 13mm tenon you could not just drill out that tenon if its vulcanite or acrylic because they typically wont last if they are that thin, they'll snap off.
So you would still have to glue in an UHMW, Delirin, or Teflon tenon. At that point it's basically easier to start with a new stem, but if your exsisting shank is already drilled to deep than its all for naught.

So could your drill a non filter pipe for a filter? Yes if you found just the right pipe that meets all the requirements and you're willing to either pay someone to do the work, or you have all the equipment and are capable of the complex drilling and machining required.

Personally I hate filters, I have exactly two filter pipes. One Peterson and one Savinelli. Both are outstanding pipes. Both smoke like crap with filters.
 
Nov 20, 2022
2,909
27,957
Wisconsin
Thanks, I like the XL02 and 306 also. I already have an XL90 and it is one of my favorite pipes. I want something that is similar to that in size. Peterson get a lot of flac for their quality control, and deservedly so, but I have had about 60 pipes by various makers and I am down to 12, mostly Peterson. I just enjoy the way they smoke.
I love the way a Pete smokes as well. Their history and experience shows in the product.
 
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shane1

Starting to Get Obsessed
Nov 30, 2014
202
379
Connecticut, USA
Yeah, I have dropped the mod idea. Looking at other models.
My post copied from another 9mm filter addition query.

The short answer is no, it cannot be done. The long answer is yes anything can be done with enough time, money, & talent.

First you need to understand a few thing about 9mm filter pipes.
1. They tend to have larger shanks.
2. They have much larger tenons.
3. filter drilling is not just making the hole bigger, it also involves drilling to the correct depth , in both the shank and the stem.
4. The tenons in filter pipes are generally UHMW. Delrin. or Teflon.

To convert a pipe you need to cut out the old tenon and drill the bit for a sleeve tenon to the correct depth.
Glue in a UHMW, Delrin, or Teflon tenon sleeve. Then drill the shank to correct depth and diameter to accept a filter/filter tenon.

Most pipe tenons are somewhere around 7-9mm to start with so drilling an existing tenon is typically not possible. A filter tenon is usually around 12-13mm od, but even if you found a pipe with a 13mm tenon you could not just drill out that tenon if its vulcanite or acrylic because they typically wont last if they are that thin, they'll snap off.
So you would still have to glue in an UHMW, Delirin, or Teflon tenon. At that point it's basically easier to start with a new stem, but if your exsisting shank is already drilled to deep than its all for naught.

So could your drill a non filter pipe for a filter? Yes if you found just the right pipe that meets all the requirements and you're willing to either pay someone to do the work, or you have all the equipment and are capable of the complex drilling and machining required.

Personally I hate filters, I have exactly two filter pipes. One Peterson and one Savinelli. Both are outstanding pipes. Both smoke like crap with filters.
 

vosBghos

Lifer
May 7, 2022
1,634
3,623
Idaho
Why? If you want a filtered pipe, buy one that is made for the filter IMO. I am frustrated by the opposite problem, I like a pipe, but it is bored for a filter. I rarely buy them because it changes the flow and draw of a pipe. I would have concerns about a second party modifying a new pipe when there are so many great filtered pipes for sale.

Sorry I didn't answer the question directly.
Not to contradict we all have our preferences. I have a few filtered pipes, they tend to come with adapters that you can use or not depending on your draw preferences. Which is nice as you can choose your own adventure.
 
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peteguy

Lifer
Jan 19, 2012
1,531
915
There is a gentleman, Sid Stavros (or close, my apologies if incorrect) who posts on a few forums. He has done more of this type of work than anyone I know of. His might be 6mm conversions, but at least you could get an idea.
 
Nov 20, 2022
2,909
27,957
Wisconsin
Not to contradict we all have our preferences. I have a few filtered pipes, they tend to come with adapters that you can use or not depending on your draw preferences. Which is nice as you can choose your own adventure.
I get the preferences, in fact that makes this hobby so much fun and is the reason for this forum. I still stand by my statement that boring out for a filter is a difficult and risky proposition considering the selection of pipes available made for filters. The original question was about how to modify a nonfiltered pipe to accept a filter which I think I gave good advice.

On the other side, as I stated I do own some filtered pipes and certainly know about the filters and adaptors. Yes, they smoke fine in general without any filter in place, but it does change the airflow and makes cleaning a tad more difficult. Filters we could talk about all day, but I personally see no good use for them based on my own experience and studies which show they are ineffective for cigarettes as far as health concerns. I know this does not necessarily apply to pipes. I also did not say anything derogatory about using filters. The adaptors do not fit perfect, and leave spaces which is not ideal. Tsuge makes an excellent corkscrew metal 9mm adaptor that may lengthen the stem flow and improve the smoke. Despite this, a good fitting stem and mortise is widely regarded as a good thing for a reason, and using an adaptor almost assures a poor fit. Still, I don't think any of the above is a big deal, but if we are going to get specific and look for an ideal scenario it applies. Just sayin.... This was all recently discussed : The Draw? :: Pipe Smoking Basics & Beginner Questions - https://pipesmagazine.com/forums/threads/the-draw.98271/

In the end, I still think that if you want a filtered pipe you are better off buying a pipe designed for a filter rather than trying to modify a new pipe.
 

PiperCalvinist

Starting to Get Obsessed
Apr 9, 2024
212
624
South Texas
I know this is very late to the party, but you can drill out a standard tenon, but I recommend doing so with a drill press so you can rightly center the hole. THE IS CRITICAL. I’ve successfully done this with an Irish Harp that I got impatient waiting for SmokingPipes to list the filtered version, so I bought a standard and converted it myself.

You don’t need to remove the original tenon, so long as you are careful with your stem from stummel removal. The acrylic material is not ideal, but it will work. I have a number of 9mm pipes that don’t use Delrin inserts - they simply use the same stem stock (one piece stem). Vauen is one such company, and from my experience they make better factory pipes than Peterson & Savinelli (both of which I like and own multiple pipes).

I would just caution you when it comes to purchasing standard pipes to convert to filtered, because there are a lot of standard tenons in which this will not work, simply because the OD if not large enough. However, Peterson pipes that offer both will definitely work because they have the same tenon size.
 

PipeMake

Lurker
Jun 17, 2025
33
22
Most doctor grabows have enough room to fit a 9mm filter in the stem.

However, Peterson does have 9mm filter pipes in many styles.