DWR Posted December 23, 2010 Share Posted December 23, 2010 Can anyone give me the size of drill bit I need to use for spark plug wires and for spark plug boots? I have checked some of the suppliers sites but can't find any information regarding this. Quote Link to comment Share on other sites More sharing options...
Foxer Posted December 23, 2010 Share Posted December 23, 2010 It seems I always needed more #80 bits for my wire holes. That or the higher 70 bits works for most spark plug wire sizes. It's easy to figure out .. get the size of the wire you use and use that to get a drill slightly larger. A #60 to #80 drill set is very handy for 1/25 models. Quote Link to comment Share on other sites More sharing options...
Tim H Posted December 24, 2010 Share Posted December 24, 2010 I think I use a #75 for my plug wires. Tim Quote Link to comment Share on other sites More sharing options...
Modelmartin Posted December 24, 2010 Share Posted December 24, 2010 This is where you need a cheap set of dial calipers($10. to $30.00). You measure whatever wire you have and then grab the corresponding size drill bit. An index filled with bits is very handy to have. The x-acto index has the number size and the inch size printed right on it. An investment in tools is an investment in your modelbuilding skills and results. Don't forget your spark plug boots! They can be easily simulated with a short piece of insulation from a slightly thicker piece of wire. Quote Link to comment Share on other sites More sharing options...
adabiri2 Posted January 13, 2013 Share Posted January 13, 2013 I was thinkin a distributor by parks or detail masters or if anyone knows any better ones let me know. Im building a Lincoln LSC pro street by Revell. What size drill bits and whos got a good deal on those pen vices? Quote Link to comment Share on other sites More sharing options...
Ramfins59 Posted January 13, 2013 Share Posted January 13, 2013 Try a #70 bit... and it's a pin vise. Micro Mark has them, but you might be able to get one in a well stocked hobby shop. Quote Link to comment Share on other sites More sharing options...
Casey Posted January 13, 2013 Share Posted January 13, 2013 Hobby Lobby sells them, too. As far as size, measure the wire diameter and use a slightly larger drill bit. I would suggest you pick up a dial caliper, too, as they are very handy for measuring: Quote Link to comment Share on other sites More sharing options...
Erik Smith Posted January 13, 2013 Share Posted January 13, 2013 You can get a pin vise just about anywhere. Get a decent one though - the tiny bits are hard to hold if the chuck parts don't align well (the four metal parts that converge on the bit to hold it in place). X-acto and Tamiya both make nice ones. As far as diameter, what diameter wire are you replicating? In scale wiring usually looks a little to small to the eye (8mm wire scales out to .012 in - a number 80 drill bit is .0135). Also, don't go big - I have seen models with "garden hose" for wires and that distracts more than adds to the look. I prefer 77 or 76 (.018 or .020), but that's just me. Quote Link to comment Share on other sites More sharing options...
southpier Posted January 13, 2013 Share Posted January 13, 2013 http://en.wikipedia.org/wiki/American_wire_gauge http://www.accuratebushing.com/pdf/ENG-FractionalChart.pdf http://en.wikipedia.org/wiki/File:Mm_to_1_inch_fraction_ruler.svg http://www.btc-bci.com/~billben/fraction.pdf http://www.hamuniverse.com/antfrac.html http://www.shipmodelersdesktop.com/ http://en.wikipedia.org/wiki/File:Decimal-fraction_equivalents--v0006.png http://raskcycle.com/techtip/webdoc11.html http://www.reade.com/Conversion/inches_%20to_mm.html http://bobmay.astronomy.net/misc/drillchart.htm http://www.btc-bci.com/~billben/convert.htm http://www.keepandshare.com/doc/2295869/32convert-pdf-october-12-2010-9-09-am-80k?da=y&dnad=y http://modelclass.tripod.com/index.htm there will be a test Quote Link to comment Share on other sites More sharing options...
Foxer Posted January 13, 2013 Share Posted January 13, 2013 Good suggestions above. I'd saw get a set of drill bits like #61 - #80. I use just about all those. A caliper is also strongly recommended, but they are commonly available with digital readouts. Quote Link to comment Share on other sites More sharing options...
adabiri2 Posted January 13, 2013 Share Posted January 13, 2013 Thanks a million. Thats wut I was lookin for. Quote Link to comment Share on other sites More sharing options...
Steven Zimmerman Posted January 13, 2013 Share Posted January 13, 2013 FYI....Harbor Freight has a digital caliper on sale all this month at $11.99 with coupon. Regular price is $29.99, coupon is available on line, I believe - and may be available in the 'flyer' bin at the store entry....'Z' Quote Link to comment Share on other sites More sharing options...
adabiri2 Posted January 13, 2013 Share Posted January 13, 2013 Maybe I should have mentioned above I was and still am a Machinist for 14yrs now. I got plastic, digital(i dont like), mititoyo japanese steel linear calipers as well and inside/outside mics, bore mics, etc. See my avatar, Im sitting in the enine bay of my car, rebuilding the whole motor. I doubt im gonna break out any measuring tools for this model. Black and white knowledge isn't the same as experience!!! You guys put together some good scale stuff!!!! Thats what Im after Quote Link to comment Share on other sites More sharing options...
Big Daddy Posted January 13, 2013 Share Posted January 13, 2013 I was thinkin a distributor by parks or detail masters or if anyone knows any better ones let me know. Im building a Lincoln LSC pro street by Revell. What size drill bits and whos got a good deal on those pen vices? Morgan Automotive Detail make by far the better distributor Quote Link to comment Share on other sites More sharing options...
adabiri2 Posted January 13, 2013 Share Posted January 13, 2013 You don't know length of those by chance? This pro stock motor's Distributor is mounted horizontal as opposed to a regular V8, that sits vertical. It sits under the cold air intake, pointing towards the driver side. Base of dist is where it should be, up front, just sits sideways. To reach the passenger side plugs their gonna have to be super long. Quote Link to comment Share on other sites More sharing options...
caine440 Posted January 13, 2013 Share Posted January 13, 2013 I agree that Morgan Automotive detail makes the best distributors. I picked up a set of calipers cheap off ebay. Quote Link to comment Share on other sites More sharing options...
skysoldier46 Posted January 13, 2013 Share Posted January 13, 2013 a set of good calipers is a very handy tool to have on the workbench Quote Link to comment Share on other sites More sharing options...
vypurr59 Posted January 13, 2013 Share Posted January 13, 2013 the longest I ever cut the wires, before fitting is 2 inches for the farthest away plug. But I normally cut all pieces of wire to this size, easier to handle. Quote Link to comment Share on other sites More sharing options...
Big Daddy Posted January 14, 2013 Share Posted January 14, 2013 You don't know length of those by chance? This pro stock motor's Distributor is mounted horizontal as opposed to a regular V8, that sits vertical. It sits under the cold air intake, pointing towards the driver side. Base of dist is where it should be, up front, just sits sideways. To reach the passenger side plugs their gonna have to be super long. M.A.D wires are 2 1/2" parts by parks are 2" pro tech are 2 1/4 " Quote Link to comment Share on other sites More sharing options...
High octane Posted January 14, 2013 Share Posted January 14, 2013 I've been using a # 69 drill bit for years to drill holes for spark plug wires and it seems to work for me. Quote Link to comment Share on other sites More sharing options...
adabiri2 Posted January 16, 2013 Share Posted January 16, 2013 a set of good calipers is a very handy tool to have on the workbench Im seeing this now!! Quote Link to comment Share on other sites More sharing options...
rockermikey Posted January 18, 2013 Share Posted January 18, 2013 For those of you Canada, Princess Auto has the Pin Vises (they call them jewelry drills) for $9.99 with 3 bits. Mike Quote Link to comment Share on other sites More sharing options...
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