Bruces 57
Frequent Contributor
Posts: 1675
Reg: 01-03-07
|
05-28-12 01:11 PM - Post#2230806
Hello;
Am installing air in my 57. got to make a couple of 1&1/4" holes so I can pass the ac hoses into the passinger compartment.
What should I use to make these holes with?
Bruce
|
|
 grumpyvette
Senior Chevytalk Moderator -- Performance Subject Matter Expert --
Posts: 15669
Age: 65
Loc: FLORIDA USA
Reg: 03-16-01
|
05-28-12 01:26 PM - Post#2230809
In response to Bruces 57
http://www.harborfreight.com/knockout-punch-kit-91 ...
| " " IF YOU CAN'T SMOKE THE TIRES FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK !" |
|
 TAT_2
"12th Year" Silver Supporting Member, and Official CT Grim Reaper
Posts: 29105
Loc: "UNDER THE BOARDWALK"
Reg: 10-29-00
|
05-28-12 03:50 PM - Post#2230849
In response to grumpyvette
I'LL SECOND THE GRUMP,USED THEM WHEN I DID ELECTRICAL WORK.
09 PONTIAC VIBE
08 PONTIAC G6
_-_-_-_-_-_-_-_-_-_-_-_-_ -_-_-
08/01/12 >>> B'CAME VETTE'LESS,
JUST LIKE JEFFREY
********
PREVIOUS VETTE'S 58,68,70,76,78,85,90
********
NEXT ?
Blessed are the cross-eyed, for they will see God twice |
|
 acardon
"9th Year" Silver Supporting Member
Posts: 9472
Loc: DFW TEXAS
Reg: 03-25-05
|
05-28-12 04:26 PM - Post#2230861
In response to TAT_2
Another option is the step drill. .... Link to step drill.
Don
66 Corvair (driving)
57 2dr HT (restoring)
56 2dr HT (waiting to be restored)
|
|
 jeffs55
"8th Year" Silver Supporting Member
Posts: 11691
Age: 54
Loc: Shelby Forest, Tennessee
Reg: 01-05-06
|
05-28-12 05:30 PM - Post#2230886
In response to acardon
Hole saws work well too. Probably better if you're on an uneven surface.
I bought some to cut my dash for the repop 55 A/C vents.
Can't do that with a step drill or hole punch.
Beware of wood-cutting sets. They won't hold up to cutting metal.
Jeff
55 Handyman
66 F100 project
32 3 Window Coupe project
1996 Silverado short bed extended cab
I actually own 2 Chevys now!
My Pics
|
|
Bruces 57
Frequent Contributor
Posts: 1675
Reg: 01-03-07
|
05-29-12 02:49 AM - Post#2230999
In response to jeffs55
Hello;
Thanks for the info. I wii pay my local HF a visit to see whats there for this job.
Bruce
|
72novaproject
Senior Member
Posts: 3186
Age: 57
Loc: D/FW Texas
Reg: 02-18-03
|
05-30-12 05:30 AM - Post#2231401
In response to Bruces 57
I suppose you have to weigh how often you expect to need a tool like that but I do quite a bit of fabrication work and not just on cars. I recently bought the “Blair Rotabroach” small (5/16 – 3/4) and large (7/8 – 1-1/2) cutter kits and I wish I would have done it years ago. Words cannot describe how clean, precise, burr free and fast these tools cut. They are a little pricy but worth it to me.
You can get all the “in between sizes” too. I am building an aluminum switch panel for my nitrous activation, bottle opener and bottle heater. I ordered a 15/32” cutter as this is the perfect size for the toggle switches. I needed a 1” hole in ¼” steel plate and it went through like butter with no burs. I just love these things.
Here is a picture of the small and large kits.
I don’t know how to post a video but this is a link to a site that has the video.
Link to video
Steve
|
Bruces 57
Frequent Contributor
Posts: 1675
Reg: 01-03-07
|
05-31-12 05:12 PM - Post#2231960
In response to 72novaproject
Hello;
If I did more stuff like fabricating and such, this would be a "must have" kind of tool. Looks like it makes short order of this kind of job!
I had a broken stud in my rear brake drum. A guy I worked with was a welder/ fabricator. I was totally blown away when he started by using an 1/8" drill bit and white grease! He just kept enlarging the bit still using the grease untill he finally got that stud out!
Bruce
|
HAL_396
Member
Posts: 2723
Loc: Austin, TX
Reg: 11-16-06
|
06-02-12 09:18 AM - Post#2232523
In response to 72novaproject
Wowey Wow Wow! I have to get a set for my garage. It's the same people that make the good spot weld cutters
1955 Chevy Custom
1966 Biscayne
1966 Caprice Drag Car Inwork
1966 Caprice parts car
2004 Silverado
2007 Impala LS
2009 G5 |
|
awsum55
Senior Member
Posts: 8838
Age: 61
Loc: O.P. Kansas
Reg: 09-27-01
|
06-02-12 11:31 AM - Post#2232564
In response to 72novaproject
The shop that did my upholstery had these sets. He let me drill a hole with one and it was amazing. No rattle or vibration like the round tube style that we all have. Just a little too pricey for me because I don't need them that often.
Five things that you cannot recover in life:
* The Stone after it's thrown
* The Word after it's said
* An Occasion after it's missed
* The Time after it's gone
* A person after they die |
|
bobb
Super Senior Member
Posts: 4628
Loc: paradise
Reg: 09-05-03
|
06-02-12 08:09 PM - Post#2232731
In response to TAT_2
be careful of those electrical knock out punches. the sizes on the punches are conduit sises not the acctual hole size. i have some and they work graet.
| 70 L camino 350 all forged,174 baby blower, g-force 5 spd, road rage suspension. Pray first before all else fails. |
|
100% CHEVY
Very Senior Member
Posts: 5442
Age: 60
Loc: Helena,Missippi,U.S.A.
Reg: 12-09-04
|
06-02-12 09:03 PM - Post#2232746
In response to bobb
On the knock-outs,you have to specify the type you need.
They're made for conduit size,panel size(switchs,etc.)
And common inch sizes,as well as metric sizes.
Mike. 
|
bobb
Super Senior Member
Posts: 4628
Loc: paradise
Reg: 09-05-03
|
06-04-12 12:12 AM - Post#2233147
In response to 100% CHEVY
now dats just crazy.
| 70 L camino 350 all forged,174 baby blower, g-force 5 spd, road rage suspension. Pray first before all else fails. |
|
brad_bb
Valued Contributor
Posts: 4190
Loc: Joliet, IL.
Reg: 07-13-01
|
07-01-12 01:26 PM - Post#2243369
In response to bobb
One tip to help prevent chipping around the hole you are cutting is to cover the area in masking tape. I always do this when using a step drill. For example, when you've painted and forgot to add the holes for an emblem. The masking tape seriously reduces the tendency to chip and would probably work well with the hole saw or rotabroach too.
| If someone else can design it, I sure as heck can figure out how to fix it! |
|
corvesy
Platinum Supporting Member
Posts: 241
Reg: 08-07-08
|
07-27-12 09:50 AM - Post#2252685
In response to brad_bb
the best hole saw i ever used is the Milwaukee carbide tooth hole saw. they make a very clean cut even on curved surfaces. Those hole saws that most
companies sell are junk in my opinion and its a hap
hazard way of cutting holes in metal. The Milwaukee
carbide tooth hole saws are not cheap but well worth
the cost if you can't afford a mistake.
|
|
Gain extra benefits by becoming a Supporting Member 
ThomasG
