What size bits?

t00lb0x · 10-11-2003, 10:50 AM

What size bits (ie: 1/4) do you need to make a #rotor style block? This includes making the barbs and for tapping.

Zogthetroll · 10-11-2003, 12:54 PM

my understanding was that the best size bit to drill the block pins was about 4mmØ (or a 5/32" bit). hole depth equal to the diameter (assuming you're using a top and bottom section with pins) probably slightly deeper if you're doing say a copper bottom with a poly top. hope that helps

Zogthetroll · 10-11-2003, 12:58 PM

oops, to answer the part about the barbs, if you're using a barb with 1/4" npt (kinda the standard for hardware stores), to tap that you'll probably need either a 7/16" or 29/64", both of which would work.

RazielWard · 10-11-2003, 06:12 PM

What size bits, and tap would i need for half inch barbs?

t00lb0x · 10-11-2003, 06:14 PM

Quote:

Originally posted by RazielWard
What size bits, and tap would i need for half inch barbs?

a) 1/2 inch barbs might be 1/4NPT.

Now, how many bits should I have? There is really no good documentation on this..

Zogthetroll · 10-11-2003, 11:03 PM

like we said, you're probably gonna want a 1/4" npt tap for half inch barbs, but that's one of two or three options. a 1/2" hose barb that you'll typically get at a hardware store can have 1/4", 3/8", or 1/2" threading on it. obviously the 1/4" makes the most sense because it requires the smallest hole and the accompanying tap and drill bit are by far the cheapest of the three mentioned thread sizes. that said, either of the two drill bit sizes mentioned below would work for a 1/4" npt tap. incidentally, that's the name of the tap you'll want, "1/4" - 18 NPT" the 18 referring to the number of threads per inch, a VERY important number to match up (trust me on that, i initially bought a 20 TPI tap, not good)

t00lb0x · 10-12-2003, 12:06 PM

Could you link me to the EXACT ones I would need? If possible...

JCYC5 · 10-17-2003, 11:42 AM

Part number 2553A13 on McMaster

t00lb0x · 10-17-2003, 05:44 PM

Thanks jeff, just what I was lookin for.

10-11-2003, 10:50 AM	#1
t00lb0x Cooling Savant Join Date: May 2003 Location: In a box Posts: 221	What size bits? What size bits (ie: 1/4) do you need to make a #rotor style block? This includes making the barbs and for tapping. __________________ "If you can't dazzle them with brilliance, baffle them with bullshit"

10-12-2003, 12:06 PM	#7
t00lb0x Cooling Savant Join Date: May 2003 Location: In a box Posts: 221	Could you link me to the EXACT ones I would need? If possible... __________________ "If you can't dazzle them with brilliance, baffle them with bullshit"

10-17-2003, 05:44 PM	#9
t00lb0x Cooling Savant Join Date: May 2003 Location: In a box Posts: 221	Thanks jeff, just what I was lookin for. __________________ "If you can't dazzle them with brilliance, baffle them with bullshit"

10-11-2003, 12:54 PM	#2
Zogthetroll Cooling Savant Join Date: Mar 2003 Location: Ohio, U.S.A. Posts: 177	my understanding was that the best size bit to drill the block pins was about 4mmØ (or a 5/32" bit). hole depth equal to the diameter (assuming you're using a top and bottom section with pins) probably slightly deeper if you're doing say a copper bottom with a poly top. hope that helps

10-11-2003, 12:58 PM	#3
Zogthetroll Cooling Savant Join Date: Mar 2003 Location: Ohio, U.S.A. Posts: 177	oops, to answer the part about the barbs, if you're using a barb with 1/4" npt (kinda the standard for hardware stores), to tap that you'll probably need either a 7/16" or 29/64", both of which would work.

10-11-2003, 06:12 PM	#4
RazielWard Cooling Neophyte Join Date: Sep 2003 Location: Pennsylvania Posts: 7	What size bits, and tap would i need for half inch barbs?

10-11-2003, 11:03 PM	#6
Zogthetroll Cooling Savant Join Date: Mar 2003 Location: Ohio, U.S.A. Posts: 177	like we said, you're probably gonna want a 1/4" npt tap for half inch barbs, but that's one of two or three options. a 1/2" hose barb that you'll typically get at a hardware store can have 1/4", 3/8", or 1/2" threading on it. obviously the 1/4" makes the most sense because it requires the smallest hole and the accompanying tap and drill bit are by far the cheapest of the three mentioned thread sizes. that said, either of the two drill bit sizes mentioned below would work for a 1/4" npt tap. incidentally, that's the name of the tap you'll want, "1/4" - 18 NPT" the 18 referring to the number of threads per inch, a VERY important number to match up (trust me on that, i initially bought a 20 TPI tap, not good)

10-17-2003, 11:42 AM	#8
JCYC5 Cooling Savant Join Date: Apr 2003 Location: Hong Kong Posts: 102	Part number 2553A13 on McMaster

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