Replacement bits for Wiha CentroFix - Page 1
Forum section: electronics / general

author: 5U4GB
author_rank: Super Contributor
timestamp: August 17, 2025, 11:48:52 am
content: I need to get some replacement bits for my Wiha CentroFix screwdriver, which used to be their 90mm Power Blade bit sets, e.g. the Wiha 76094 and 76095. However in their infinite wisdom they've seen to discontinue all but the security Torx bit sets at that length, leaving just the 74988 stubby bits. Can anyone recommend any 90mm or longer bit sets that aren't one of an infinite number of China-dropshipped no-name stuff that will probably snap or have the heads fail after the third screw?

author: wraper
author_rank: Unknown
timestamp: August 17, 2025, 12:10:39 pm
content: You can find Wera part numbers for particular bits herehttps://products.wera.de/en/bits_holders_adaptors_and_sets_the_range_of_bits_bits_for_hexagon_socket_screws_840_4_z_hex-plus.html.htmlAlthough they're quite expensive when bought separately. They have a great set with a handle 059297 but it lacks flat bits except a single large one.

author: 5U4GB
author_rank: Super Contributor
timestamp: August 17, 2025, 01:24:49 pm
content: Hmm, and no Roberston drivers in there either, sigh... I had a look at the Wera stuff and one concern is that the hex shanks are a lot shorter than the Wiha ones, which also affects other drivers like the Bosch ones that I'd looked at. Will this affect their stability in the Wiha holder? The big selling feature of the CentroFix is that there's zero wobble, once it's been clicked into place it's like a cast-in-one-piece screwdriver.

author: wraper
author_rank: Unknown
timestamp: August 17, 2025, 09:20:04 pm
content: Quote from: 5U4GB on August 17, 2025, 01:24:49 pmhttps://products.wera.de/en/bits_holders_adaptors_and_sets_the_range_of_bits_bits_for_square_socket_screws_868_4_square-plus.htmlQuoteWhat stability are you talking about, they are 6-7mm longer than the depth of any normal bit holder socket that I have and CentroFix does not seem to have more extra depth than that.

author: 2N3055
author_rank: Super Contributor
timestamp: August 17, 2025, 09:41:00 pm
content: Quote from: 5U4GB on August 17, 2025, 01:24:49 pmCentroFix is specific to Wiha.All others might have slight movements in a socket, with a long bit. It makes no difference in practical use, when your hand wobbles an inch while rotating the handle.Wera does have very good quality of materials, and more importantly, very precise geometry and tolerances of tips.For instance it will hold PH2 screw on a tip without it being magnetic.. It is that tight and precise. A pleasure to work with. And they hold well, especially when used for electronics where people do use it as chisells...

author: 5U4GB
author_rank: Super Contributor
timestamp: August 18, 2025, 04:01:10 am
content: Quote from: wraper on August 17, 2025, 09:20:04 pmI meant this:Left is Wiha, right is Bosch. The big deal with the CentroFix is that there's absolutely no wobble (it has some exotickraut-space-magicball-bearing locking system to hold the bits in place, I'd love to see someone do an animation video of how this works, it looks like the locking mechanism that's used on some straight-pull rifles), but I'm not sure whether that relies on the longer hex shank on the Wiha bits to achieve that.In the meantime I've found that Alpha Tools dobits with the same long hex shanks that Wiha uses, although they give you little information on what they're made of I'm sure it'll be better quality than no-name Chinese stuff off Amazon/Ali/whatever.

author: wraper
author_rank: Unknown
timestamp: August 18, 2025, 11:14:49 am
content: Quote from: 5U4GB on August 18, 2025, 04:01:10 amunless you mean lower part (as on the picture) of it being a bit longer, did you check that extra length actually occupies any of the CentroFix socket's depth? From what I've seen on pictures online, it does not seem so.

author: 5U4GB
author_rank: Super Contributor
timestamp: August 18, 2025, 12:21:47 pm
content: Good question, I'd always just slotted it in and not paid much attention to what still stuck out, but it looks like with the original Wiha bits a good length remains outside the holder... which means the Bosch and similar bits should fit without there being any wobble.

author: 2N3055
author_rank: Super Contributor
timestamp: August 18, 2025, 01:45:17 pm
content: Quote from: 5U4GB on August 18, 2025, 12:21:47 pmThere are some tps with shortened hex part but these Wera are not the short part.They are just right length to protrude few mm out of handle holder.As for holders, my favorite are Wera Rapidaptor. They not only nicely hold bit in place but it also ejects bit out, so no fiddling with shorter bits.

author: Arts
author_rank: Regular Contributor
timestamp: August 20, 2025, 01:59:18 am
content: I have both CentroFix models, the 76000 and the 38701. They work perfectly with all the different styles of bit shanks; Insert, 9mm, 9.5mm, 13mm, 14mm. Even double ended bits work. No wobble with any of them.