Silverhill Tools ATKS50 5-point Star (Pentalobe) Screwdriver Set (6 Pieces) (IPR1 - IPR6)

This has worked great. The only problem is that the set does not specify the size of each pentalobe. It is; however, color coded.

I am no neophyte to small and very small tools, having watch repair sets as well as security bits and micro torque bits which are often used. Bought this to open and clean a MAC Air laptop (P-5 bit). The bit with best fit still had substantial play -- not like 6-lob torx fasteners. After removing the 10 screws, the driver was twisted about 15-20 degrees. The metal is extremely soft for small tools which really ought to be drop-forged or at least billited during manufacure. I like the $7 tekton bit much more.Upshot, driver worked, but might not work again. I had hoped that they would be better quality.

I bought this set specifically as it includes (a somewhat rare) TS4 driver. This turned out to be very wrong - the driver shape and size is invalid. The shape is more "star" rater than a pentalobe (star edges are not rounded) and the size itself is slightly less than required (again, as star edges are not round, they had to make the whole "star" to be somewhat smaller). Obliviously the shape mismatch plays bigger role as the size of the driver increases. You probably won't have any problems with TS1 driver from this set to open an iphone, but it is IMPOSSIBLE to use TS4 driver to open macbook air. In a frustration I bought two other TS4 drivers from different manufacturers, and they both worked flawlessly, even on a screw that was damaged by the driver from this set.In short - you can use TS1 driver from this set. But if you buy this set with a thought "I'll have TS4 and TS4 for my macbook in future" - then beware: it's a wrong set for that.

The sizes of this set are T00, T0, T1, T2, T3, T4, T5.Some advertisements state the sizes as T0 - T6, but they are actually smaller. There is no T6 in the set.The six screwdrivers in this set come with a handy nylon fabric pouch with a see-through vinyl front panel. There is a large grommet opposite the velcro closure suitable for hanging the pouch from a peg.The shaft is 1 1/4" long which is usually plenty for most recessed screws.All screwdrivers have colored rotating tops, in the style of jeweler's screwdrivers. The colors are different so you can tell them apart, except that they re-use some of the same colors in the ATKS51 larger set so you have to look at the tips and try them to see which one will fit best.They appear to be nickel or chrome plated.The tips appear to be cast or stamped. These are star or pentacle-shaped. The outside and inside corners of the lobes are pointy. Each lobe's side is slanted on the last mm to the tip, like a worn phillips screwdriver.Because of the worn tips you should be careful to maintain the shaft perpendicular to the workpiece surface (always directly in line with the screw shaft) and maintain downward pressure while operating the screwdriver or you may damage the screw or the screwdriver tip.The grommet on the pouch is opposite the velcro closure flap so when you hang it by the grommet the open side is on the bottom. You should always securely seal the velcro before hanging the pouch or the screwdrivers will fall out when you hang up the pouch.I needed a T6, so I bought both Silverhill sets, the ATKS50 and the ATKS51.As it turned out the largest ATKS50 was theoretically a T6, but in reality is a T5.The smallest ATKS51 is a TS8. So none of them fit. I ended up getting a ZDMAK MK-2429X15 (5 point star bonus set) which I am thrilled with. The ZDMAK only goes down to a T4, so for those really tiny screws (iPhone) you will need the Silverhill or other.

The set gives you a cheap, effective set of tools to remove the newer Pentalobe (5-sided) screws now being utilized by Apple on certain products. The sizes range from TS1(smallest) to TS6 (biggest). Apple keeps changing the standard (previously used to be most recently, primarily hex - 6 sided)to continue discouraging end-users from attempting self-repair and casual access to internal components as they consider all internal parts non-self-serviceable. This is certainly an annoying cat-and-mouse game. If you want to attempt an Apple repair on a newer Macbook or iPhone this set will do the trick.The set handles are made of cheap, lightweight plastic with removable color coded end-caps. Unfortunately, the manufacturer fails to include a legend to associate the colors with the corresponding head size. My set was colored capped as follows :White: TS1Yellow: TS2Blue: TS3Red: TS4Purple: TS5Green: TS6The set also includes a cheap plastic-windowed velcro case with an eyed-grommet to attach to a carabiner clip (not included) or other attachment device for convenient carrying.I've utilized this to open a Macbook Air (mid 2012) with the TS5 (Purple) driver with good success. Also used the TS1 (White) to open an iPhone 4s and it worked well. The manufacturer claims "Made from Chromed S2 Steel" so hopefully the tips should not strip too easily but extreme care should be taken when using these (also confirm you are using the right size) to also avoid stripping the screws themselves.Overall I would recommend using this set. 1 star deduction for lack of head size markings...meaning room for improvement. But serves the purpose as a cheap set that works.JasonFlux Computer RepairOwner/Tech Support