Cueman's gun drill

qbilder

slower than snails
Silver Member
I bought one of Chris' gun drills, the .775". It was shy of $180 shipped. It came in yesterday & looked like a gun drill, nothing fancy. I bought a small compressor from Lowes for $120, to use with it. The air hook-up is on the side of the bit, so it chucks up easily into even a 1/2" drill chuck. So far, it was very easy & simple to set up.

First of all, the lathe I tested the bit on was my Deluxe, which a lot of guys have. I used a 3/4" straight router bit to drill a 1" pilot hole into the wood, which was a piece of cocobolo. I then chucked up the gun drill & slowly guided it into the hole while the lathe was spinning. I kept my hand on the bit to keep it from vibrating. Once in, it began cutting nice & blowing the chips right out the groove in the bit. I left the tailstock body loose so it could move freely, and had the barrel locked. I put the carriage behind it, pushing it steadily with the autofeed. It took about 3 minutes to drill through the cocobolo with one sweeping, smooth cut. I held a vacuum hose up close to the hole & it caught 99% of the dust & chips being blown out. My concern was how accurately the drill would follow center. I knew my pilot was center. Well, the drill emerged from the other end dead center. I then drilled three more cocobolo rounds & one zircote to be sure it wasn't a lucky fluke. It came out center every time, and the auto feed made it rediculously easy.

So in essence, i'm thoroughly impressed with the drill. I used my Deluxe lathe because I could use autofeed with the bit chucked up in the tailstock, unlike most drills that are mounted on the carriage. It cut smooth, clean, and as fast as I wanted to go. The Deluxe is a common lathe amoung cuemakers, and now there's a gun drill that can easily be used with it to do dead nuts accurate coring. I accurately cored 5 pieces of wood in an hour, which i'm not sure if that's fast or slow but in my shop it's friggin fast. Just thought i'd share my experience with other Deluxe owners.
 
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Excellent feedback!
Chris, great job on the gun drill! (didn't expect anything less)

Thanks,
Zim
 
Great review Eric. What speed setting did you use when turning the wood on your deluxe? I have a set of gundrills I purchased from sterling about a year ago but I haven't used them yet. Your detailed instructions are great and will help a lot. Thanks.
 
I ran it full speed. It's tough to say because I have a dc motor with variable speed controller, and it's faster than the stock motor. My auto feed is also changed to variable speed controller instead of the multi-swith transformer that comes stock.
 
qbilder said:
I bought one of Chris' gun drills, the .775". It was shy of $180 shipped. It came in yesterday & looked like a gun drill, nothing fancy. I bought a small compressor from Lowes for $120, to use with it. The air hook-up is on the side of the bit, so it chucks up easily into even a 1/2" drill chuck. So far, it was very easy & simple to set up.

First of all, the lathe I tested the bit on was my Deluxe, which a lot of guys have. I used a 3/4" straight router bit to drill a 1" pilot hole into the wood, which was a piece of cocobolo. I then chucked up the gun drill & slowly guided it into the hole while the lathe was spinning. I kept my hand on the bit to keep it from vibrating. Once in, it began cutting nice & blowing the chips right out the groove in the bit. I left the tailstock body loose so it could move freely, and had the barrel locked. I put the carriage behind it, pushing it steadily with the autofeed. It took about 3 minutes to drill through the cocobolo with one sweeping, smooth cut. I held a vacuum hose up close to the hole & it caught 99% of the dust & chips being blown out. My concern was how accurately the drill would follow center. I knew my pilot was center. Well, the drill emerged from the other end dead center. I then drilled three more cocobolo rounds & one zircote to be sure it wasn't a lucky fluke. It came out center every time, and the auto feed made it rediculously easy.

So in essence, i'm thoroughly impressed with the drill. I used my Deluxe lathe because I could use autofeed with the bit chucked up in the tailstock, unlike most drills that are mounted on the carriage. It cut smooth, clean, and as fast as I wanted to go. The Deluxe is a common lathe amoung cuemakers, and now there's a gun drill that can easily be used with it to do dead nuts accurate coring. I accurately cored 5 pieces of wood in an hour, which i'm not sure if that's fast or slow but in my shop it's friggin fast. Just thought i'd share my experience with other Deluxe owners.
First I will say keep the paprework for the compressor. I got a small one last year so I did not have to run the large compressor when I am working late. It lasted about 8 hours of use before siezing up. I ran it for about 4 hours straight 2 times. It was an oil filled type compressor.
I generally core cocobolo in about 30 - 45 seconds for an 18 inch piece. I go as fast as I can without loosing cut quality or splitting the wood. The bit centers it's self off of the shoulder of the cutterhead. The slower you go the longer it is pushing on the bore of the hole the hotter the wood will get and it somewhat polish/burnishes the hole.
 
qbilder said:
I bought one of Chris' gun drills, the .775". It was shy of $180 shipped. It came in yesterday & looked like a gun drill, nothing fancy. I bought a small compressor from Lowes for $120, to use with it. The air hook-up is on the side of the bit, so it chucks up easily into even a 1/2" drill chuck. So far, it was very easy & simple to set up.

First of all, the lathe I tested the bit on was my Deluxe, which a lot of guys have. I used a 3/4" straight router bit to drill a 1" pilot hole into the wood, which was a piece of cocobolo. I then chucked up the gun drill & slowly guided it into the hole while the lathe was spinning. I kept my hand on the bit to keep it from vibrating. Once in, it began cutting nice & blowing the chips right out the groove in the bit. I left the tailstock body loose so it could move freely, and had the barrel locked. I put the carriage behind it, pushing it steadily with the autofeed. It took about 3 minutes to drill through the cocobolo with one sweeping, smooth cut. I held a vacuum hose up close to the hole & it caught 99% of the dust & chips being blown out. My concern was how accurately the drill would follow center. I knew my pilot was center. Well, the drill emerged from the other end dead center. I then drilled three more cocobolo rounds & one zircote to be sure it wasn't a lucky fluke. It came out center every time, and the auto feed made it rediculously easy.

So in essence, i'm thoroughly impressed with the drill. I used my Deluxe lathe because I could use autofeed with the bit chucked up in the tailstock, unlike most drills that are mounted on the carriage. It cut smooth, clean, and as fast as I wanted to go. The Deluxe is a common lathe amoung cuemakers, and now there's a gun drill that can easily be used with it to do dead nuts accurate coring. I accurately cored 5 pieces of wood in an hour, which i'm not sure if that's fast or slow but in my shop it's friggin fast. Just thought i'd share my experience with other Deluxe owners.
I forgot to say my drill is one I had custom made so it may have a diffrent cutter profile that lets it cut that fast. I have not tried any other brands so I don't know if that speed will work on yours.
 
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the one we have cuts pretty fast too.i would say less than a minute for sure on 13" pieces.


My concern was how accurately the drill would follow center. I knew my pilot was center. Well, the drill emerged from the other end dead center.


i will say that i learned one thing the hard way.it may be commons sense,but it wasn't common enough for me at the time.

i was drilling a piece of Koa that was 1.38" on one end and about 1.25" on the other end.i drilled the big end first(mistake)and the bit came out off center on the other end.i guess lookign back it makes sense,but i thought i would let everyone know who didn't already.
 
I'll try faster cutting. I have no doubt it will cut faster, just didn't do it. I'm not a coring kinda builder, don't care much for it except for on unstable or soft or too heavy of woods. I prefer to not core, but have encountered situations when a gun drill would have made my job much easier.
 
"...I put the carriage behind it, pushing it steadily with the autofeed. It took about 3 minutes to drill through..."

Great tip "Mr. Qbuilder"... impressive! :)
-Chris
 
Poulos Cues said:
"...I put the carriage behind it, pushing it steadily with the autofeed. It took about 3 minutes to drill through..."

Great tip "Mr. Qbuilder"... impressive! :)
-Chris

I can't take credit for it. I read it on here some time back where somebody had done something similar. I can't remember what task they were using it for, but do remember noting the good idea of auto feeding the tailstock.
 
qbilder said:
I can't take credit for it. I read it on here some time back where somebody had done something similar. I can't remember what task they were using it for, but do remember noting the good idea of auto feeding the tailstock.
That is NOT in the machining manual!
Kinda like marking the bed where you want to stop during power feed.:)
 
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JoeyInCali said:
That is NOT in the machining manual!
Kinda like marking the bed where you want to stop during power feed.:)
A marker pen is much better than a hacksaw mark:mad: :eek: :thumbup:
 
JoeyInCali said:
That is NOT in the machining manual!
Kinda like marking the bed where you want to stop during power feed.:)
Or you could use the Power Feed Auto Stop.
 
cueman said:
Or you could use the Power Feed Auto Stop.

I did this years ago- I turned the toggle around so it is facing the bed of the lathe and I have a bar against the rack that I can easily adjust/set it where you want to stop- let 'er rip- and when the toggle runs up against it---- viola! :wink:
 
Poulos Cues said:
I did this years ago- I turned the toggle around so it is facing the bed of the lathe and I have a bar against the rack that I can easily adjust/set it where you want to stop- let 'er rip- and when the toggle runs up against it---- viola! :wink:
I have had auto stops on all my tapering machines for years, but just got around to making one that easily pops on and off of the Deluxe. I made ths one to where it can be put on the machine anywhere, so you could make it kill the the power feed when it gets to the end of the cue or just to the end of the wrap channel or point grooves for instance. It was another one of the thousand projects I put off for years.
 
cueman said:
I have had auto stops on all my tapering machines for years, but just got around to making one that easily pops on and off of the Deluxe. I made ths one to where it can be put on the machine anywhere, so you could make it kill the the power feed when it gets to the end of the cue or just to the end of the wrap channel or point grooves for instance. It was another one of the thousand projects I put off for years.

Project #1001-

The red button/ auto stop on the side of the carriage that kills the power to EVERYTHING...

(I might have a slight headstart on you...:eek: )
-Chris
 
Poulos Cues said:
Project #1001-

The red button/ auto stop on the side of the carriage that kills the power to EVERYTHING...

(I might have a slight headstart on you...:eek: )
-Chris
I use electronic switches on my tapering machines that kills everything also. They are subject to failure once in a while so I am not putting them on the Deluxe. The powerfeed auto stop is pretty much fail proof.
 
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