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4x Cable Drill Bit Size

Pj! · 2012-04-19 15:29:50

Changing from single LNB to a multi LNB. Currently have a single cable coming through the exterior wall but need to make room for 4. Just wondering what drill bit size you would recommend for a snug fit? I'm guessing some of you have done this plenty of times and might know off the top of your head.

19-04-2012 3:29pm

#1

Pj!

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Changing from single LNB to a multi LNB. Currently have a single cable coming through the exterior wall but need to make room for 4.

Just wondering what drill bit size you would recommend for a snug fit? I'm guessing some of you have done this plenty of times and might know off the top of your head.

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Comments

#2 19-04-2012 4:11pm

bigbob

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Join Date: April 2004

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minimum drill bit diameter to fit 4 co-ax cables = 2 *{(sq root[r*r*2]) + r }
where r = half diameter (radius) of single co-ax cable

for example say coax cable diameter is 6mm
2*{(sq root[3*3*2])+3} = 14.48mm

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#3 19-04-2012 4:30pm

steveon

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Size 16mm will fit 3 cables in a bit tight but will go in...so anything from 18mm to 20mm and you will be sorted.

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