Double Flaring Tool Kit
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OTC Double Flaring Tool Kit

Part No. OTC4503 Warranty Details  
Designed for double or single flare in copper, aluminum, soft steel brake line, and brass tubing (to 45 degrees)
Includes five adapters 3/16" through 1/2" (4.8mm through 12.7mm)
Chrome swivel, made of alloy steel reduces friction
Forged yoke made of heat treated steel
Housed in a blow-molded case
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by PowerReviews
OTCDouble Flaring Tool Kit

(based on 1 review)

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Reviewed by 1 customer

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(7 of 13 customers found this review helpful)


Works well on the NiCopp brake line


from Apex, NC

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  • Easy To Use
  • Hinge


  • Vice is loose on bar

Best Uses

  • Home Garage

Comments about OTC Double Flaring Tool Kit:

I bought this online but I had to look up the description on another website to see what was included in the kit. Advance Auto has the worst website for descriptions of products. I have used it for copper single flare and NiCopp inverse flares. I like the hinge, my old one had 2 bolts, this one had a hinge so you can open it all the way to get the line out of the vise. I added a little brake fluid to facilititate the inverse flare and it worked very well. To set the depth, you just let the line stick out the distance of the shoulder on the inverse fitting. The only thing I didn't like is the vice part fits so loose on the bar that you have the possibility of only one side is attached. You just have to pay attention.

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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    can i get just the 3/16 flare adapter in your stores
    Asked on 6/14/2014 by Brian from Winter Haven, Florida

    1 answer



      Hi Brian, happy to assist you! This is sold as a kit. I unable to locate the 3/16 inch flare adapter online. I would recommend that you check with the nearest Advance store and one of our parts pros will be glad to assist you with an alternate availability.

      Answered on 6/15/2014 by Vincent from AAP
  • Q:

    Is it made in the USA?
    Asked on 2/4/2014 by Bill from St. Albans VT.

    1 answer



      Hi Bill, great question! Advance Auto Parts does sell Made in the USA products as well as products manufactured from many other countries in order to keep our pricing competitive. Please also keep in mind that many suppliers have multiple manufacturing plants that could result in different countries of origin for the same part.

      Answered on 2/4/2014 by Vincent from AAP
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