*Update*: After some use, the bits will lose its grease (if you keep holding it bare-handed) and start to rust. However, the tip has not been affected so far. The bits that I don't use still retain their grease.=========Main Review:=========I could not rate it more as it's still lacking in the cross-recess departments (it only got PH: Philips Head and PZ: Pozidriv).In terms of build quality, the bits tip are quite durable. All bits are greased (though your fingers won't feel oily; you could smell the typical odour in most mechanical stuffs). The screwdriver handle is comfortable to hold as it is made of rubber (for grip too)--that's the black-coloured part. The red part at the top, which is used to avoid over-fastening screws (like most precision screwdrivers), is large enough for easy application.Inserting the bit into the handle's slot (stainless steel) is easier than I thought it would; you just insert it, no tightening mechanism involved as the metal part is magnetised too (I could lift a metal object without the magnetic bit inserted). It's tight enough not to budge at all when you're screwing/unscrewing. However, removing the bit might be a bit hard (though very doable within seconds) since the bit's girth is relatively small (and as stated, greased) that it might slips off between your fingers (I suggest removing it with a cloth or tissue if you find it hard to remove it using your thumband forefinger).As for the box, the base is pretty heavy (not quite sure for what purpose). It'd be more convenient for me if the box had been wider/spacier; that would make taking off the bits and the handle easier (though this does not affect my rating at all; just an opinion).Since I'm using it for simple everyday stuffs like laptops/remotes/joysticks, I don't find myself in need of those Hex and Torx bits. So, I think it's a bit pricey for me. But otherwise, it's a good screwdriver set.Note: There are only 29 bits (not 30); you can count them yourself via the picture provided. I've also added a customer image which provides details of what types are available (this is Boxer's description)._______________________________________________________________________________________________==========Extra Review:==========Intro:------I decided to buy a screwdriver set in order to open up my Acer 4349 Laptop. Previously, I had send it to the laptop's local repairer because the RAM got baked (actually, he had to inspect before knowing the cause, and that costed me around 50 dollars which was quite painful to pay). When I got it back, I found out my WiFi reach has been reduced to a pathetic 1m. I couldn't afford to waste money on any repairer anymore, and so I have to do it myself.Objective:----------Anyway, the reason I had to buy a set is because the screwdrivers that I have could only open the screws of the laptop's cover but not in the battery's compartment (i.e. I can't open the cover). There's a 'M2x3L' near each six screws. I searched the whole net just to find useless "laptop screws" littered everywhere. How the heck am I supposed to know what screwdriver could open them? That's why I need to have the most complete screwdriver set particularlythe cross-recess (+) and slot (-) bits.After a few days looking up different screwdriver sets, I finally arrived here: Boxer's 29 Pcs 4mm Precision Bits (you read that right: 29 not 30; a careful inspection of the picture should verify it). The other sets either don't have any cross-recess/slot bits at all, or inferior in the number of bits available.Test:-----After I got the product, I tried different (+) bits (which are PH: Philips Head) but to no avail. Then, I proceed to the slot bits: I finally got it opened using the 1.5mm bit (no wonder my previous jewelry precision set couldn't open it--it got 1.4, 2.0, 2.4, 3.0 slot bits). When I've determined the WiFi adapter card, I tried to open the only screw (using the first two rows of the bits) but it's not budging a bit. It either needs a special screwdriver, or the head has worn out(but it does not seem so).I was really hoping to replace the card, but I noticed the single antenna got fixed to 'AUX 2' and 'MAIN' was empty. I'd figured switching the antenna to 'MAIN' could help, and it did--I finally got back my usual 10m WiFi range. So, in the end, Boxer's really helped in the process to that extent.