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Early 2011 model, A1278 / 2.3 GHz i5 or 2.7 GHz i7 processor.

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Requesting assistance: BIT size

Hello! I have purchased ,Item code: IF163-054-2, battery with the screw driver set, of the bits which is too big for fan screws. Now I am thinking of purchasing ,Item code: IF145-299-4 ,screw driver bits set. Since I am not familiar with the bits names, I assume I need 3mm Torx one, the one that looks like a star. My question is do you think the set has the 3 mm star head? I am not sure what does T3,T2 stand for exactly. Thank you!

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The fan uses a T6 Torx #6 screw as seen in the guide:

MacBook Pro 13" Unibody Early 2011 Fan Replacement

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If you work through the original question, it was more about whether or not a T3 bit is included in the iFixit bit driver set IF145-299-4


@geekittogether I understand but there is nothing on this machine that uses a T3. I have only used that bit once on the newer Touch bar models.


@mayer Oh, I see. I missed that detail!


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Check out the guides here: MacBook Pro 13" Unibody Early 2011 Repair

They list the required tools for each repair section there.

As for the bit-set, yes it has the correct bit. I own that screwdriver set and it has every bit needed to fully disassemble the laptop.


  • Case with magnetic latching lid with built screw sorting tray
  • 150 mm flex extension
  • Magnetic aluminum driver handle with spinner top for 4 mm drive bits
  • Phillips-000, 00, 0, 1, 2-JIS-J000, J00, J0, J1
  • Flathead-1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm
  • Torx/Torx security T2, T3, T4, T5, TR6, TR7, TR8, TR9, TR10, TR15, TR20, TR25
  • Penta lobe-P2, P5, P6-Tri-point-Y000, Y00, Y0, Y1
  • Hex-0.7 mm, 0.9 mm, 1.3 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm
  • Nut driver-2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.5 mm
  • Square-1, 2-gamebit-3.8 mm, 4.5 mm
  • Spanner-6, 8-triangle-mm 2, 3 mm
  • iPhone standoff bit, oval drive, SIM eject bit
  • Magnetic pickup bit, 1/4 in. to 4 mm driver adapter
  • Backed by iFixit's lifetime warranty


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The T stands for Torx

Not to be confused with the 5-point star ones called pentalobe


Thank you so much for the prompt reply, it is helpful! Have a nice day!


You are very welcome. Best luck!


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TINATIN KOBAKHIDZE will be eternally grateful.
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