Cheapest according to the camels. They have been a little wonky lately so I'm not 100% sure if this is the cheapest. Had a quick look through OzBargain's history and can't really find too many instances of this particular set. All the deals I can see are a couple of years old or so and more expensive than this set.
Bosch 70 Piece X-Line Drill and Screwdriver Bit Set $26.25 + Delivery ($0 with Prime/ $39 Spend) @ Amazon AU
 
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 - 22 drill bits, 3 spade bits, 34 screwdriver bits, countersink and magnetic bit holder. 
 - Thanks OP. Ordered a set. Hope it's better than my Ryobi. 
 - This one goes to around $21 during flash sale  - The V-Line one?  - Yeah 
 
 - Correct, I’ve bought this at $21 
 
 - One's case has an 'X' shape and the other a 'V'  - I see it now. No difference in quality? 
 
 
 - These are poor quality drill bits ,bought this set last year ,a few bits broke after a couple of times use.  - And find it difficult to remove bits and place them back! 
 - I 100% agree. These are basically single use drill bits. I too bought them last year. 
 - Yes, I' surprised they don't have a subscribe and save option on these! 
 
 - Single use ideal 
 - Reading bad reviews on Amazon, 2 minutes later all sold.  - The 91 bit one is still avail at a few $ more.  - 103 piece is $80 now. 
 If you bought everything in Suttons brand it'd be much more. But it would last.
 
 
 - Got one $21 last month, thought it made in Germany as listed, but things inside look so cheap when I open and turn out it made in you-know-them. 
 Did not expect much at that price anw.
 - I’ve had this set for 21 years lol! Received a reasonable amount of use. Any drill bits that snap or get blunt I just replace with higher quality ones. Very handy. I think the quality overall is fine.  - The logic of having something to meet even a single use need but a single storage place for all your bits always appeals to me. - Sure, over time you will replace certain frequent use bits, but you will always be able to find them always neatly stored in one place.  - Exactly Chiang. 
 
 - Did the case plastic hinges last? Those little plastic pins look like they would break very easily. That's my pet peeve with these things. I'm planning to get a set of steel cases for my gear in the future.  - No they’re still good lol. It’s interesting how the design is completely unchanged over all these years. 
 
 
 - I’ve gotten these cheap Bosch sets before and the bits are quite soft. Bosch make good sets but this isn’t one of them. 
 - 91 pieces for $35 is a good value too? - Deal of the day: Bosch 91-Piece V-Line Titanium Drill Bit and Screwdriver Bit Set with Ratcheting Screwdriver (For Wood, Masonry, and Metal) https://amzn.asia/d/aPAw6Gc 
 - Why don't they make more drill sets with multiple drills the same size? I always blunt or lose one of the common size drills I need and then I have to go buy individuals or another set. Does everyone have this problem?  - Yes you can buy same size packs at Bunnings, for example…. Sutton Tools 2.0mm Metric HSS Jobber Drill Bit - 10 Pack 
 
 - Ordered last night and it arrived this morning! Fast! 
 - Can't recommend this set. Bits break easily. Low quality. 





X line vs v line?