Goat Boy Gauge/Bits

[Falcon777]

Looking for advice when using the Goat Boy Drill tool. The #43 hole bushings are made of tough carbide steel for longevity. My current DD #43 carbon steel drill bit was a little loose in the tool and wandered. When I pulled out my calipers and the conversion charts, I was surprised to see that my bit was way off so I need to find another alternative that is incredibly rigid and of proper diameter and will not wander. The question is will a tungsten carbide steel bit eat into the carbide steel bushing that is designed for longevity? Will cobalt or titanium do the same? What do the pros recommend in terms of drill bit type, brands and sources - I do not want to destroy the tool. Really like the tool.

Also, for scouting events where a smaller #44 bit is required, is there a sleeve or perhaps a #44 bit with a #43 shank? Any ideas?

Thanks.

 

[3phase]

I personally don't have one of Goatboy's tools, but from what i've read people us a pin vice to make the holes.
Thanks for bringing up the point of checking drill bits.

 

[HurriCrane Racing]

I have the Drill jig and my 43 carbide bit appears to fit perfectly. I do use a pin vise as I don't want to damage the inserts.
So far the tool is doing well. I drilled up four bodies this week. I'm hoping to see an improvement. I still need to polish the wheels and axels.
Hoping to get done in time for the race on 4/26

 

[Falcon777]

I used a pin vice as well but may opt for a small precision drill chuck. My pin vice was slipping. What type of bit did you use - carbon steel, carbide, etc? Thanks

 

[HurriCrane Racing]

I used a carbide drill bit I got from DD4H

 

[HurriCrane Racing]

Oh, I did need to shim the body to fit the jig to eliminate the chance that the body would slip.

 

[IAE Racing]

I have the old style without the inserts, have used only the carbide bits from DD4H. with the 44 need to be carefull to go straight into the block at the same angle. it is easy to get some tow, if you are not carefull.

 

[Kinser Racing]

Every bit is going to have tolerances. The more expensive the bit the tighter the tolerances MAY be. The bushings also have tolerances, you could just have stacked tolerances.

 

[Guest]

Falcon,

The tool is designed for #43 drill bits. #44 drill bit will have too much slop and could damage the bushings. I use #43 carbide drill with a pin-vice and have not had a problem. I run a #43 through every fixture before I ship out to make sure it has a smooth/proper fit. All my bits are purchased through Mcmaster Carr but DD4H should be good as well. Let me know if you have any issues with the tool. If you think you already damaged the bushing, ship the tool back to me and I will install you a new bushing. Thanks for your support Falcon!

Ian

 

[ngyoung]

You have any more of those jigs coming down the pike?

 

[Chump Change Racing]

+1 put me on the list for one../images/boards/smilies/smile.gif

 

[Falcon777]

Thanks Ian ....... Love the tool. My #43 bit wobbled in the bushing and when I measured the diameter of the bit with calipers, I was surprised to see it was not even close to the actual .089 in or 2.261 mm. Same for my 44 - off by quite a bit which explains why my axles were always tight. I went to Ace Hardware and measured Irwin bits which were also much smaller than advertised. John ....... If you are reading this, can you measure your carbide steel #43 and PM me with the measurements. I will contact MC and look at theirs too. Also Ian, it is safe then to use the carbide steel bits - they won't cut or damage your bushings? Once I get a proper # 43 bit, I will test it for fit and contact you and let you know. Also, do you know of a manufacturer who makes a 44 bit with a 43 shank to use with strict scout rules - is there such a bit? Thanks Ian ......... Excellent, high quality tool and excellent customer service.

 

[Kinser Racing]

Thanks Ian ....... Love the tool. My #43 bit wobbled in the bushing and when I measured the diameter of the bit with calipers, I was surprised to see it was not even close to the actual .089 in or 2.261 mm. Same for my 44 - off by quite a bit which explains why my axles were always tight. I went to Ace Hardware and measured Irwin bits which were also much smaller than advertised. John ....... If you are reading this, can you measure your carbide steel #43 and PM me with the measurements. I will contact MC and look at theirs too. Also Ian, it is safe then to use the carbide steel bits - they won't cut or damage your bushings? Once I get a proper # 43 bit, I will test it for fit and contact you and let you know. Also, do you know of a manufacturer who makes a 44 bit with a 43 shank to use with strict scout rules - is there such a bit? Thanks Ian ......... Excellent, high quality tool and excellent customer service.

There won't be a bit like you're asking for. There would be no market for it. When drilling you would just use the correct drill bushing.

 

[DerbyDad4Hire]

Those bits always seem consistent and right on. My problems I have are with the calipers. I checked all the bits i have and they all measure the same.

 

[ngyoung]

Thanks Ian ....... Love the tool. My #43 bit wobbled in the bushing and when I measured the diameter of the bit with calipers, I was surprised to see it was not even close to the actual .089 in or 2.261 mm. Same for my 44 - off by quite a bit which explains why my axles were always tight. I went to Ace Hardware and measured Irwin bits which were also much smaller than advertised. John ....... If you are reading this, can you measure your carbide steel #43 and PM me with the measurements. I will contact MC and look at theirs too. Also Ian, it is safe then to use the carbide steel bits - they won't cut or damage your bushings? Once I get a proper # 43 bit, I will test it for fit and contact you and let you know. Also, do you know of a manufacturer who makes a 44 bit with a 43 shank to use with strict scout rules - is there such a bit? Thanks Ian ......... Excellent, high quality tool and excellent customer service.

There won't be a bit like you're asking for. There would be no market for it. When drilling you would just use the correct drill bushing.

I have never tried it but a quick and dirty solution may be to just put tape around the smaller bit to get a snug fit in the bushing.

 

[Falcon777]

To accommodate the 44 bit, Monokote around the bit may do the trick with a drop of oil. It is fuel proof so oil will not have an adverse effect on it. Calipers check out ok. The carbide bits are of much higher quality and the tolerances are much tighter than the carbon steel bits I was using and measuring. Will order carbide steel bits.