I found this one on Facebook marketplace, it was close by and the price was right. She needed just a little work and new handles.Should work well for me.
In the U.S. it was the Workmate 79-004. In Canada, it was the Jobmate 3980. The Jobmate had a unique feature--a pair of removable metal covers for the jaws--but was otherwise basically the same as the 79-004.
Can you check the bottom surface of the jaws and tell me the 5-digit code there, probably something like "720 12"? You have a very late-production Type 2, judging by the features, so the code could be very helpful. The jaws on that one may open to 5-1/2", for example, wider than most Type 2's. Thanks.
Thanks. This was made during the last several weeks of production of the Type 2, on May 31, 1977.
The vise handle sitting on top must be one of the originals, right? And, if you don't mind, does it have the 5-1/2" opening jaws rather than the Type 2's standard 4"?
The 79-004, in spite of only ever being sold (as far as I can tell) as a Type 1, can have features that are all over the place. It has some from the 79-001 Type 2 (aluminum H-frame, 4 screw-in feet on the legs, the double-layer jaws), the Type 4 (the all-plastic handles, all steel parts painted, the style of label on the jaws), and the Type 6 (the bumper feet for sawhorse height, the plastic top-release levers, the one-piece base-release catch, the single-layer jaws, the black H-frame bushings). They can even have single-layer MDF jaws, which I don't think were used on the 79-001 until the Type 7.
For a sort of ultimate inconsequential piece of trivia, I believe it was the only Workmate to ever pair the aluminum H-frame with the black plastic bushings.
The measurements read 4 1/2" board edge to board edge however who knows what has been done to this over the years.
Now you've got me curious. If you look at the rear end of the side bracket that supports the jaws, there's a slot in the top of it that allows the jaws to open. Does the slot extend almost all the way to the end of the bracket, like the right-hand photo? Or does the slot end about 2-1/2" inches from the end of the bracket like the one on the left?
For some reason I feel like I have 2 of those gripmates despite never seeing them in maybe half a decade, I don't think they had the orange inserts for the top though,
The picture on the left is closer to what I have but measures 2".
Wow, that's new to me. I've seen the short slot and the long slot, but not one that was in between. That explains the 4-1/2" opening of the jaws (in between the common 4" and 5-1/2").
Can you check the threaded rod for the vise? Is its length also in between the long one shown on the left and short one on the right?
Thanks, the rod is also an in-between length. So there are three different setups for the jaw opening.
(I may have confused things with the way I asked the question. The pair of rods on a single Workmate always match each other. My photos showed the difference between the short and long rods from a Type 2 and a Type 4.)

I ended up deciding to keep my 200 at least until I find another, so started looking around for a new rubber foot.. A rebuild kit for most of the jaws, handles AND includes bench dogs is going for $16 on amazon, but for 2 little rubber boots they want $10,
Now we know where black and decker are making their money on these things![]()


It's been three weeks since I first asked for the code numbers from your Workmates, so here is an update on how the documentation of Workmate 79-001 production dates is going.
First, thanks so much to the owners who have provided the Brockville production codes from their Workmates! I obviously could not do this without your help.
Second, some numbers. I now have production code info on 66 Workmates. (My initial goal is 100, so please provide info on yours if you haven't yet.) It is dominated by Type 2's (38 of them) and Type 4's (12 of them). There are 3 to 5 each of the Type 1, 6, 7, and 8. There are no Type 9's yet.
And then, some examples of interesting dates. I have enough data to pinpoint some transitions only roughly. For example, the switch from the production of the Type 1 to the Type 2 took place between early March and late June 1975. Although a fairly long window, this is still more than we ever knew previously.
Other transitions are now documented much more precisely. For example, the Type 2 was produced up through late June 1977 and followed immediately by production of the Type 4 starting in July 1977. Similarly, production of the Type 4 ended in October 1978 and production of the Type 6 started that same month.
Some of the parts changes for the Type 2 are now known quite precisely as well. For example, Black & Decker changed the center core of the vise handles from metal to plastic in the last half of June 1976. Similarly the 4-rib step was replaced by the 3-rib step in mid-October 1976.
And for my last, but perhaps most notable, example, we now know when the most visible change of all happened. That was during the production of the Type 4, when the H-frame changed from cast aluminum to stamped steel in December 1977 or January 1978.
There are many more parts changes visible in the data and now with identifiable dates, but I'm not going to list them all here.
You can read all about the Brockville production codes at my blog page:
https://h-frame.weebly.com/blog
A link to the current version of the spreadsheet with the raw data of the 66 Workmates can be found several screens down on that page, under the heading "Can I See Your Data?". Or if you don't want to read the blog entry, but just look at the raw data, this is the direct link to the spreadsheet:
https://h-frame.weebly.com/uploads/1/3/0/4/130458025/workmate_79-001_brockville_codes_web.xls
Sunny day. Thought I’d take some pics. Here’s 6 of my “H” frames. The 3 in the front are refurbished. Cleaned with new parts, rust removal, paint and new top boards. I have one other Type 4 that is in pieces right now. The single one pictured is the latest one I finished.


That’s some awesome work there Jonathan. Are any of those tops replacements? If so are you using Baltic birch?
Yes. I replaced the tops. The dark ones are Baltic birch with traditional cherry stain. The other one is solid maple.
Considering I haven't seen maybe but one broken one for sale at garage sales in the past few years I was driving to pick up this toy lathe when I saw the familiar pattern of black folded legs on the side of the road with some furniture. It's a type 7, I heard of workmates with power strips but it looks like it's just an add on from the owner.
A minor point. The Craftsman 109 is a step up from a "toy" lathe. It has its limitations to be sure. Looks like you got a chuck with yours which is not all that common. Many just used a faceplate and dog. The 1/2 inch spindle does limit finding a decent chuck. I think you got a pretty nice machine for small stuff and soft metals. It is a good machine to learn on if nothing else. To keep the thread on point, the workmate is probably sturdy enough for such a lightweight lathe although a bench top likely would be better.

Dovetail clamps are getting popular in the woodworking community. I thought workmate tops would be the perfect opportunity. Router a dovetail groove anywhere and you’ll be able to make use of dovetail clamps. No aluminum rails or tiny little screws that might not hold. I added a couple to the latest top I was making. I think they look pretty sharp. Like a pinstripe down the center. Opens up lots of new clamping possibilities.
That’s a great idea Johnathan! I have not pulled the trigger on any MATCHFIT clamps yet but I have had them in my Amazon wish list for over a year.
It's been three weeks since I first asked for the code numbers from your Workmates, so here is an update on how the documentation of Workmate 79-001 production dates is going.
First, thanks so much to the owners who have provided the Brockville production codes from their Workmates! I obviously could not do this without your help.
Second, some numbers. I now have production code info on 66 Workmates. (My initial goal is 100, so please provide info on yours if you haven't yet.) It is dominated by Type 2's (38 of them) and Type 4's (12 of them). There are 3 to 5 each of the Type 1, 6, 7, and 8. There are no Type 9's yet.
And then, some examples of interesting dates. I have enough data to pinpoint some transitions only roughly. For example, the switch from the production of the Type 1 to the Type 2 took place between early March and late June 1975. Although a fairly long window, this is still more than we ever knew previously.
Other transitions are now documented much more precisely. For example, the Type 2 was produced up through late June 1977 and followed immediately by production of the Type 4 starting in July 1977. Similarly, production of the Type 4 ended in October 1978 and production of the Type 6 started that same month.
Some of the parts changes for the Type 2 are now known quite precisely as well. For example, Black & Decker changed the center core of the vise handles from metal to plastic in the last half of June 1976. Similarly the 4-rib step was replaced by the 3-rib step in mid-October 1976.
And for my last, but perhaps most notable, example, we now know when the most visible change of all happened. That was during the production of the Type 4, when the H-frame changed from cast aluminum to stamped steel in December 1977 or January 1978.
There are many more parts changes visible in the data and now with identifiable dates, but I'm not going to list them all here.
You can read all about the Brockville production codes at my blog page:
https://h-frame.weebly.com/blog
A link to the current version of the spreadsheet with the raw data of the 66 Workmates can be found several screens down on that page, under the heading "Can I See Your Data?". Or if you don't want to read the blog entry, but just look at the raw data, this is the direct link to the spreadsheet:
https://h-frame.weebly.com/uploads/1/3/0/4/130458025/workmate_79-001_brockville_codes_web.xls
