High quality precision screwdriver set, specialized using in narrow, precise instrument,
blade made of CR-V steel, and wear well from professional treatment.
Withe the long shaft adapter, the working length of the bits can be reach 140mm. 
Pentalobe 5 points bits 0.8mm can use for open Iphone 4S to 7 Plus bottom screws.
Pentalobe 5 points bits 1.2mm can use for open Macbook Air and Pro bottom screws.
T2,3,4,5,6 for precise turning of small screws on many mobile phones or glasses watches, computers.

22pc set, including:

slotted-1.5mm,2.0mm, 2.5mm, 3mm; 
Phillips-PH000, PH00, PH0, PH1
Pozi-PZ0, PZ1
5pt pentalobe-0.8mm, 1.2mm
Torx-T2, T3, T4, T5, T6
Hex-H2.0, H2.5, H3.0, H4.0
with free gift: Torx-T7, T8, T9, T10, T15, T20

0.8mm Pentalobe screwdriver:
- It is used for loosening the bottom of all parts for iPhone /MEIZU/vivo etc. 
1.2mm Pentalobe screwdriver:
- It is used for loosening the bottom of macbook pro retina 2013 to 2016 screws etc.   
PH000 1.5mm Phillips screwdriver:  
-to open cross head. It is used for loosening the motherboard screws of parts for iphone/Sam-sung etc. 
PH00 2.0mm Phillips screwdriver:
-for case screws and some internal screws on for Macbook, for MacBook Pro & laptop 
Flat bit (-2.0mm) screwdriver:
-for the Flat screw of for iphone 2G,3G/3GS,for iphone 4/4S,for iphone5
Torx T2 screwdriver:
-for PSP 2000, etc. teardown and repair;
Torx T3 screwdriver:
-for Motor-ola V3, Siemens SL55, etc. phones teardown and repair;
Torx T4 screwdriver:
-for Motor-ola series, PDA, micro hard driver, etc. teardown and repair; 
Torx T5 screwdriver:
-for internal screws of battery, logic board, SSD on parts for MacBook Air 2010-2012, for Retina MacBook Pro, for HTC, for Black-berry, for Motor-ola, for Nokia and other smartphone
- for Motor-ola series, Nokia series, Black-berry series, etc. phones and laptop hard drive HDD teardown and repair. 
Torx T6 screwdriver:
-for some internal screws on parts for Macbook, for Macbook
-for almost all models of Nokia, some models of Motor-ola, Sam-sung, Sony, Black-berry phones and computer HD repair;
Above are simple instroduction.