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Author Topic: ID this Drill  (Read 1665 times)

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Offline Chuck Burg

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ID this Drill
« on: April 07, 2014, 07:40:47 PM »
Found this in a local semi truck service shop that closed down.



It has a Milwaukee holehawg drill motor.

It has a drill bit guide that's for a 7/16 drill bit, it has a 12" and a 18" bit with it.

This is threaded for a 2 1/2" pipe looks like a finer thread to me.



Any ideas?

I can get more pics if anyone what's them

Feel free to cross post this to other sites, I'd like to know what its used for before I strip it apart for the motor
« Last Edit: April 07, 2014, 07:43:08 PM by Chuck Burg »
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Offline Aunt Phil

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Re: ID this Drill
« Reply #1 on: April 10, 2014, 12:03:55 AM »
Before you disassemble the device, what else was with it?

It could be the drive for a reamer or boring bar or it could have been used as a frame drill.
From what I see in the picture I'm leaning toward frame drill at the moment.
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Offline Chuck Burg

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Re: ID this Drill
« Reply #2 on: April 10, 2014, 08:36:42 AM »
2 drill bits was the only other things in the shipping case I found it in, there was a cylinder honing brush in the room where I found this, I'll check and see if it's a 7/16 shaft on the brush.
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Offline john k

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Re: ID this Drill
« Reply #3 on: April 10, 2014, 09:18:25 PM »
On the bottom of the stand, is a big nut.  Looks like a big truck axle nut for a full floater.  I wonder if this could be a rig someone dreamed up to drill down into a broken off axle shaft, so it could be threaded and pulled out?   
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Offline Aunt Phil

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Re: ID this Drill
« Reply #4 on: April 10, 2014, 11:07:07 PM »
10 years ago I would have been looking to grab it for a power unit for line boring things like boom and bucket pins.  Thankfully I no longer become involved beyond saying You can do that when asked about such jobs.

The assembly bears resemblance to the power end of a truing unit for rebuilt in place spindles on full floating truck axles.  It also bears resemblance to a number of other power units. 
I do not see the large nut referenced as a holding system for the power unit, not enough purchase for the power the drill motor produces.  More likely for line reaming pins  or shafts.  Aluminum makes sense for weight on a portable unit.  The bushing at the base would easily accommodate a boring bar.  Aluminum base probably floated in a shoe assembly that was attached to the item being bored.
Also be handy as hell as a column or beam drill, strap shoe in place, drop power unit into shoe and secure.

Finding in a truck garage might also indicate use reaming walking beam bushings.
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