Clamps,

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Clamps,

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  • #78300
    Charlie,
    Participant
      @charlie18171
      Hi Chaps,
      Anyone out there know where i can buy ( Crab Clamps), I think
      that is what they are called but i could be wrong,
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      #5762
      Charlie,
      Participant
        @charlie18171
        #78306
        ady
        Participant
          @ady
          Are crab clamps like nutcrackers? Or mole grips?
           
          is this one?
           

           

          Edited By ady on 22/11/2011 05:34:56

          Edited By ady on 22/11/2011 05:35:43

          #78308
          Eddie
          Participant
            @eddie
            Hi
            This clamp is manufactured by Kreg tools.
            It is used with a pocket hole jig.
            Try one of the hardwarestores where you can by spesialist tools.
            Eddie
            #78315
            S.D.L.
            Participant
              @s-d-l
              Posted by charlie on 21/11/2011 20:41:16:

              Hi Chaps,
              Anyone out there know where i can buy ( Crab Clamps), I think
              that is what they are called but i could be wrong,
              I presume that you mean this style
               
               
              I got one as a crab clamp off ebay last year but haven’t found any since.
               
              Steve Larner
              #78317
              Mike
              Participant
                @mike89748
                Beware of the plastic clamps of this type sold by some DIY outlets. They’re all but useless!
                #78318
                JasonB
                Moderator
                  @jasonb
                  J&L sell ones liek SDL’s link
                   
                  #78326
                  macmarch
                  Participant
                    @macmarch
                     
                    Try Machine Mart.
                     
                    These should do the job. here
                     
                    ray
                    #78328
                    Clive Foster
                    Participant
                      @clivefoster55965
                      I think Charlie is looking for the original green Crab Clamps designed by Mike Freeman(?) which appeared on the market in the early 1980’s. Very similar to those shown in the link from S.D.L but deeper in the throat with the flat portion opposite the screw about twice as long. Have a suspicion that they may have been wider and the rotating 4 sided clamping pieces slightly differently configured.
                       
                      Saw them demonstrated at an Exhibition around mid 1980’s and was quite impressed but had more important demands on the wallet in those days. As I recall things they stood up on their own in quite a stable manner when rested on the straight edges of the arms opposite the screw. The edges running up to the pivoting clamp pieces were also straight and long enough to allow a work-piece held by two or three crab clamps to be set flat on a level surface, albeit a bit above.
                       
                      By my memory rather better thought out than the J&L ones linked to by Jason and better proportioned for some purposes than those found by S.D.L. As I recall matters they went off the market in the late 1990’s.
                       
                      Google for  Crab Clamps Popular Science and open the link to the November 1985 issue which should come up with a good in use picture at the top of the page.  Can’t insert the link ‘cos its a monster being via Google books.
                       
                      Clive

                      Edited By Clive Foster on 22/11/2011 14:12:40

                      #78331
                      macmarch
                      Participant
                        @macmarch
                        Ah! I see. Got the wrong idea.
                        Charlie, Do you want these for welding or for holding parts together for drilling?
                        ray
                         
                        #78335
                        Richard Parsons
                        Participant
                          @richardparsons61721

                          Charile I have one ‘Crab clamp’ at the ME –Wembley- like you my wallet was very hollow so I only bought one. Within their limits (of size) they are very good. I wish I could get three, more.

                          Rdgs

                          Dick

                           
                          #78356
                          Charlie,
                          Participant
                            @charlie18171
                            Good evening chaps,
                            Yes clive you have hit the nail on the head, your description fits
                            exactly what im looking for, And yes richard i got one at a car
                            boot for a couple of quid, Now i want the other three,And i imagine
                            i will get struck by lightning long before that happens,Ray i dont
                            use em for welding cos i cant weld anyway, But over time i have
                            used them in a number of aplications to numerouse to list,I have to
                            say i am delighted at the response i have had to this post, And i
                            thank you all for your input,
                            Charlie,
                             
                            #78365
                            Anonymous
                              Like this?
                               

                              I bought four in the late 80’s. It must have been through an advert in ME, because I only received two clamps, and then spent the next year complaining to the ME advertising manager about the company. Eventually she got fed up with me ringing up and persuaded the company to supply the remaining two clamps.
                              Regards,
                              Andrew
                              #78370
                              Robert Dodds
                              Participant
                                @robertdodds43397

                                Beware of the plastic clamps of this type sold by some DIY outlets. They’re all but useless!
                                 
                                Some are not only useless but positively dangerous.
                                The plastic spring loaded ones with a torsion spring in them can get overstressed to breaking point if left with a thick load in the jaws and there’s a lot of stored energy in them when they go so be sure to duck out of the way
                                . I think our Asiatic friends use recycled plastic in some of them
                                The alternate design with ratchet bar and trigger release are more friendly but none will do the job that the Crab will do
                                Bob
                                #78376
                                Charlie,
                                Participant
                                  @charlie18171
                                  Hi Andrew
                                  You must be a person of some considerable status to actualy own four of
                                  them,Its a nice pic and is of course exatly like the one i have,And i
                                  suspect like myself you would not part with them for a kings ransom,
                                  Regards
                                  #78378
                                  Clive Foster
                                  Participant
                                    @clivefoster55965

                                    Well if you really, really want some more it might be worth checking out what the laser cutting service folk would charge for a few sets of side arms. Everything else is dead simple to make if you have a lathe and mill. Heck could get a whole bunch of side-arm sets made and sell kits either just side arms or with material for the other bits to help defray the set-up charges.

                                     
                                    J&L do the similar Kant-twist ones in sizes from 1″ to 6″ from approx. £10 to £30 plus VAT plus delivery each so for anything other than baby size costs are going to add up. £10 plus a bit of work for something in the 4″ to 6″ size range wouldn’t be too shabby but not £100 to £150 from J&L just to avoid a bit of work …….
                                     
                                    Thinking about it functional arms could be made by bandsawing three pieces from strip steel and welding together. Especially if your views of the relative importance of aesthetics and function when it comes to tooling follow mine!
                                     
                                    Clive

                                    Edited By Clive Foster on 22/11/2011 23:02:46

                                    #78393
                                    Styx
                                    Participant
                                      @styx
                                      Hi Charlie,
                                       
                                      Lots of different sizes.
                                       
                                      Steve…
                                      #78399
                                      S.D.L.
                                      Participant
                                        @s-d-l
                                        For those who want to try them you can get the alternative i linked to in the USA from here in the UK
                                         
                                         
                                        Steve Larner
                                        #78415
                                        The Merry Miller
                                        Participant
                                          @themerrymiller
                                          It’s worthwhile looking at the link below to see where it all started from.
                                           
                                           
                                          Len. P.
                                           
                                          #78422
                                          john jennings 1
                                          Participant
                                            @johnjennings1
                                            I have eight of these: four larger and four smaller.
                                             
                                            This makes me Mr Big of the Crab Clamp world! Their great advantage is their capability to provide a stand for the clamped work.
                                             
                                            They are not perfect as the removable plug in plastic pads slowly disintegrate (well over 20 years) The paint job could also adhere better at little adhesive induced rust leads to flaking off.
                                             
                                            John
                                            #88680
                                            micky guido
                                            Participant
                                              @mickyguido18880

                                              hi, just came across this after looking for 'crab clamps' and have had 2 hanging off a rafter for the last 18 months doing very little apart from the handle of 1 being used as a stop for my garage door so it jams it 2/3rds shut!!!

                                              #112545
                                              PeterGee
                                              Participant
                                                @petergee24605

                                                They were excellent little clamps, made by Turton Engineering – now long vanished, sad to say (the current company of that name is not directly related to the Crab Clamp-making one).

                                                I have 3 of them still (would the person that nicked the 4th one please give it back!) and use them almost daily. Mine are in red, by the way, but with the plastic sticker saying thay are: "CRAB CLAMPS – Made in England".

                                                I will try to post a photo of one of them once I have "settled in" here.

                                                #112549
                                                PeterGee
                                                Participant
                                                  @petergee24605

                                                  Here is a photo of one of my own Crab Clams:

                                                  Crab Clamp

                                                  The preview shows the photo as rather distorted, but the background should help work out the true aspect ratio of the photo… I hope.

                                                  #112683
                                                  Michael Gilligan
                                                  Participant
                                                    @michaelgilligan61133
                                                    Posted by Clive Foster on 22/11/2011 14:04:01:

                                                    Google for Crab Clamps Popular Science and open the link to the November 1985 issue which should come up with a good in use picture at the top of the page. Can't insert the link 'cos its a monster being via Google books.
                                                    Clive

                                                    Edited By Clive Foster on 22/11/2011 14:12:40

                                                    .

                                                    Clive,

                                                    With any luck … this should be the link

                                                    Thanks for locating it.

                                                    MichaelG.

                                                    #112713
                                                    PeterGee
                                                    Participant
                                                      @petergee24605
                                                      Posted by Graham Meek on 20/02/2013 19:07:19:

                                                      The original brand name of these clamps is KANT TWIST and I think they originate from the US,

                                                      Interesting to find a US manufacturer still making them. Aside from the name they give their product ("Deep Throat Jaw", indeed!) I will contact them to find if they have any European distributors for their products, or how much they would charge for a small quantity of them shipped to Europe.

                                                      If I get a reply, I will put the gist of the message up here.

                                                       

                                                       

                                                      Edited By PeterGee on 21/02/2013 09:22:59 trying to get the aspect ratio of the photo correct-ish

                                                      Edited By PeterGee on 21/02/2013 09:24:12

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