I've made a couple of worktops out of 15mm MDF with the parf guide mkII, and am using UJK parf dogs - combo of pups, super dogs etc. I'm finding the dog holes incredibly tight - bordering on un-useable now. I've tried going back over the holes and re-drilling with the parf guide, but it's still tight.
Anyone have any ideas to open the holes out slightly while maintaining accuracy? tried running a 20mm Festool spiral bit through with the router, but it's very difficult to make sure the cut is exactly central to the original hole.
And is anyone else experiencing similar issues? I'm wondering if the bit has worn slightly, although I've only done the equivalent of 2 full sheets of MDF over the time I've had the parf guide.
Anyone have any ideas to open the holes out slightly while maintaining accuracy? tried running a 20mm Festool spiral bit through with the router, but it's very difficult to make sure the cut is exactly central to the original hole.
And is anyone else experiencing similar issues? I'm wondering if the bit has worn slightly, although I've only done the equivalent of 2 full sheets of MDF over the time I've had the parf guide.