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T-REX 250 › Bolt size
02-04-2010 02:59 AM  8 years agoPost 1
schucb

rrApprentice

Minnetonka, MN 55345

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I have an original t-rex 250. I picked up a secondhand 250 SE, and it didn't come with a hex driver. The bolts on the SE have a larger hex size vs the original. What size wrench do these take? It appears to be the same size head as the bolt that fastens the head to the main shaft on my original 250.

Brian

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02-04-2010 03:00 AM  8 years agoPost 2
schucb

rrApprentice

Minnetonka, MN 55345

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Is this what I want?

http://www.miponline.com/MIP/HWrench.html

I assume the original 250 used the 0.5mm wrench and the SE is the 0.9mm?? Is that right?

Brian

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02-04-2010 03:17 AM  8 years agoPost 3
dkshema

rrMaster

Cedar Rapids, IA

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The original 250 used 0.9 mm hex screws. I think the SE went to 1.3 mm.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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02-04-2010 03:20 AM  8 years agoPost 4
schucb

rrApprentice

Minnetonka, MN 55345

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1.3mm on the se is correct. I just found it in the manual.

Brian

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02-04-2010 04:05 AM  8 years agoPost 5
12FGHeli

rrNovice

Shreve, OH USA

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You'll need both the .9mm & .050" (1.27mm) hex drivers for the T-Rex 250SE. Below are the part numbers for the MIP Thorp hex drivers.

MIP9012 .9mm Thorp Hex Driver
MIP9000 .050" (1.27mm) Thorp Hex Driver

The following .050" (1.27mm) hex drivers also fit well and are less expensive than the MIP Thorp drivers.

C22301A Team Integy Wrench Ti-Nitride Hex .050"
DYN2910 Dynamite Machined Hex Driver .050"

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