Torx screwdrivers for SRM knives? Yeah, right!

34 posts / 0 new
Last post

Pages

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA
Torx screwdrivers for SRM knives? Yeah, right!

I bought a SanRenMu folding knife, the B4-735.

http://www.sanrenmu.com/en/foldingknives/product/76.php

(all photos borrowed from the internet)

This knife is a flipper.  Problem is that it doesn't flip hardly at all, maybe because one of the Torx screws is too tight.

 

According to exduct, SanRenMu uses T6 & T10 Torx screws.

http://www.exduct.com/Manual-Tool-Sets/KS001-Knife-Screwdriver.html

But exduct wants $6.04 (including shipping) for a 2 piece Torx screwdriver set.


I figured I could save money by purchasing T6 & T10 screwdrivers on eBay.

The first auction is here:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130395112947&ssPageName=STRK:MEWAX:IT#ht_2754wt_905

The screwdriver bits don't work on my knife; $2.48 wasted.


Here's the second auction:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110563658504&ssPageName=STRK:MEWAX:IT#ht_4709wt_905

Again, the Torx bits don't work on my SanRenMu.

Another $3.58 wasted.  (I don't do returns when I buy the wrong cheap items from Hong Kong)


I did some research.  There are several different Torx variants:

http://en.wikipedia.org/wiki/Torx#Variants

I don't know what to do.  Exduct seems expensive for what you get.  I've read that there are Torx screwdrivers at Lowe's/Home Depot (in the U.S.) that are good for knives, but I don't know if they work for SanRenMu knives.


Q1) What type of Torx T6 & T10 screws are used in SanRenMu knives?

Q2) Where is a good place to buy a Torx screwdriver set for SRM knives?

Edited by: raccoon city on 04/03/2011 - 18:57
Don
Don's picture
Offline
Last seen: 1 year 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

When I need a specific one I'd only get them from a place I can try them to make sure they work before I buy.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

NiBi
Offline
Last seen: 7 years 9 months ago
Joined: 11/14/2010 - 19:59
Posts: 73

I have the Screwdriver from exduct and it works but i have some knives with hex screws so try this first .Smile

AAA: Black Cat   AA: SkyRay S-A1,  Uf 501c (2AA Q3),   18650: Uf 501b (Xenon),Uf 504b (R5), SkyRay S-R5 , TR801, SkyRay 1JC8    

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

Maybe I could buy from a local home improvement store and return the item if it doesn't work with my knife?  It would be a lot faster than buying from Hong Kong again.  Keep up the good advice!  Laughing

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

NiBi wrote:

I have the Screwdriver from exduct and it works but i have some knives with hex screws so try this first .Smile

Thank God exduct knows what they're talking about.  It's a shame their shipping is quite high.  Money mouth

Vectrex
Vectrex's picture
Offline
Last seen: 10 months 3 weeks ago
Joined: 05/01/2010 - 15:39
Posts: 2778
Location: Gemany (according to my Black Cat)

SRM 908 hex( on Pivot 2 mm - on Handle 1.5 mm) , SRM 605 hex ( P 2 - H 1.5), SRM 909  hex (H 1.5), SRM 905 hex (H 1.5) ,  EL01+EL02 (H torx T6 )

higbvuyb
Offline
Last seen: 2 years 1 month ago
Joined: 07/21/2010 - 23:37
Posts: 88
Location: Australia

Torx T6 and T10 are standard sizes so if you have bits marked T6 and T10 they should work fine. 

What exactly do you mean by 'they don't work'?

cpf
Offline
Last seen: 1 year 10 months ago
Joined: 04/18/2010 - 08:29
Posts: 126

i had/have a similar prob with my 710 - the screws on the clip just won't unscrew. the main screw, where the blade pivots, however does unscrew.

i use a set similar to the second one in post #1. but i have seen pics on the net of a 710 with clip removed.

on the 735 it looks as tho you cannot access the main screw unless you remove the clip, is that the prob ?

Buwuve
Buwuve's picture
Offline
Last seen: 4 years 6 months ago
Joined: 02/11/2011 - 14:49
Posts: 1975
Location: Germany

SRM GB-704 torx T6

Light up the darkness.

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

cpf wrote:

on the 735 it looks as tho you cannot access the main screw unless you remove the clip, is that the prob ?

Yes!  I cannot remove the two tiny screws (maybe T6) holding the clip; they don't want to budge None of the screwdriver bits that I have catch onto the screws.

Don
Don's picture
Offline
Last seen: 1 year 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

raccoon city wrote:

cpf wrote:

on the 735 it looks as tho you cannot access the main screw unless you remove the clip, is that the prob ?

Yes!  I cannot remove the two tiny screws (maybe T6) holding the clip; they don't want to budge with any screwdriver bit I have.

 

There is probably thread lock goop on the screw threads - it can take quite a lot of force to break it if they've used the stronger stuff.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

Okay, I shouldn't have said that they "don't want to budge."  The screwdriver bits don't catch onto the screws.  They look exactly like Torx screws, but  T4, T5, T6, T7, T8, T10, and T15 screwdriver bits don't fit.  That's why I thought the screws were Security Torx, Torx Plus, external Torx, or TTAP screws.  (discussed here: http://en.wikipedia.org/wiki/Torx#Variants)

Don
Don's picture
Offline
Last seen: 1 year 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

Sometimes a suitably sized hex key will engage weird Torx variants. Didn't realise there were so many of them.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

I've got 7 different hex keys, and they don't catch onto the screws either.  Good Perfect idea, though.  Smile

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

I'm starting to think that maybe even the Exduct screwdriver would not work on the SRM B4-735.  I mean, it probably works for a lot of SanRenMu knives, but I have two different T6 and T10 screwdriver bits and they don't fit.  I think I need to track down someone that has actually taken a B4-735 apart.  Also, I could contact Exduct to see what they think would work.

Vectrex
Vectrex's picture
Offline
Last seen: 10 months 3 weeks ago
Joined: 05/01/2010 - 15:39
Posts: 2778
Location: Gemany (according to my Black Cat)

Can you make a macro photo of the screw in question?

Davx
Davx's picture
Offline
Last seen: 5 years 9 months ago
Joined: 03/17/2011 - 20:29
Posts: 910
Location: Italy

When i can't find the right bit i take a budget bit (the one with the nearest measure) and simply mod it with a file or with a grinding wheel.

"There are always new jobs, women, and apartments......there is only ONE BLF." - Chicago X (27/03/2012)

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

Vectrex wrote:

Can you make a macro photo of the screw in question?

I took some regular photos and they turned out horrible.  Can I take a macro photo with a Canon Powershot A590 IS?

Vectrex
Vectrex's picture
Offline
Last seen: 10 months 3 weeks ago
Joined: 05/01/2010 - 15:39
Posts: 2778
Location: Gemany (according to my Black Cat)

I can with my IXUS 80 , there is that flower symbol button which activates macro mode but unzoom first.... you can go very close to the object, like 5-20 cm .... manual of your cam page 61... you should get something like this:

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

Here's my best macro shot so far.  I didn't read the manual (yet).  I'm pretty sure a tripod would have made the picture better.  Also, the screw on the left is somewhat stripped.

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

rzezniq
Offline
Last seen: 9 years 1 month ago
Joined: 07/02/2010 - 06:59
Posts: 81
Location: Poland

That doesn't look like torx. It looks like hex key. Now the question is: "is it metric or not"?.

 

More about hex: http://en.wikipedia.org/wiki/Hex_key

Vectrex
Vectrex's picture
Offline
Last seen: 10 months 3 weeks ago
Joined: 05/01/2010 - 15:39
Posts: 2778
Location: Gemany (according to my Black Cat)

Thanks for the pics, that helps a lot. I think like rzezniq that this is a hex screw of the metric kind ... probably the  1.5 or 2 mm version like on the clip/pivot screws on my SRMs. If you are lucky a 1/16" hex also fits... but that is not the case on all the SRMs I tried. I have a bit set that sports all hex kinds, both metric and inch. Do you have a well well-assorted  hardware store nearby, where you can try them out?

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

I know it's not a Star1.5mm, Star2.0mm, Hex2.5, or bigger Hex.  It could very well be Hex1.5 or Hex2.0 as I don't have those.  Not a Torx screw, hmm?  I obviously would have never guessed...  Tomorrow I see the dentist and afterwards I can check out Wal-Mart as it's practically next door.  They probably have small hex keys.  By the way, the first macro photo doesn't show it very well but the stripped hex screw on the left looks a lot like a Torx screw in person.

The mystery of the phantom Torx screw has been solved...  And I would have gotten away with it too, if it weren't for you meddling kids.  Tongue out

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

I found my hex keys!  I was looking for them about a month and a half ago when I first tried to tweak my SanRenMu 735.  I couldn't find them, but then for some crazy reason I thought I need Torx keys.  (Darn you Exduct!)  Actually my mother knew where the hex keys were in the garage the whole time.

I've got English and Metric.  My knife required the two smallest English hex keys I've got.  I removed the screws and the knife still doesn't flip open.  Maybe some WD-40 will fix that?

charlestt
Offline
Last seen: 4 years 5 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK

Ah so that's an hex key !! we call them allen keys over here Smile

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

Vectrex
Vectrex's picture
Offline
Last seen: 10 months 3 weeks ago
Joined: 05/01/2010 - 15:39
Posts: 2778
Location: Gemany (according to my Black Cat)

I hope that you don't have the problem, that I still have with my 908. Does it move more easily, if you hold down the liner manually? I have the suspicion that this might be an issue on some coated blades from SRM. I am still waiting for my SRM 939, which will also have a coating.

jekostas
Offline
Last seen: 10 years 2 weeks ago
Joined: 11/30/2010 - 03:09
Posts: 576
Location: Surrey

A lot of SRMs use metric hex wrenches.  As to your knife being a little slow to deploy, some of the SRMs that are coated needed to be oiled and broken in by opening and closing them a few dozen times to get the washers in a nice groove.  This is pretty normal for a lot of knives - Spydercos ALWAYS need a break in period, as do a lot of Cold Steel knives.

raccoon city
raccoon city's picture
Offline
Last seen: 13 hours 31 min ago
Joined: 10/06/2010 - 02:35
Posts: 17291
Location: रॅकून सिटी Palm Desert CA USA

I have a different problem now.  Once I had the right hex keys, disassembling the knife was easy.  Two screws hold the clip onto the knife and the three main screws hold the knife together.  I removed all the screws, and now I can't reassemble the knife.  So I may have wasted a $9 knife.  I can still try to put it back together, but the knife isn't cooperating.  Lesson learned.

Vectrex
Vectrex's picture
Offline
Last seen: 10 months 3 weeks ago
Joined: 05/01/2010 - 15:39
Posts: 2778
Location: Gemany (according to my Black Cat)

Please don't give up and take some pics along the way of trying to put it back together. Might be educational...

I think the most crucial thing is the placing of the teflon/bronze washers.

jekostas
Offline
Last seen: 10 years 2 weeks ago
Joined: 11/30/2010 - 03:09
Posts: 576
Location: Surrey

What's the problem you're having with reassembly?

Pages