I've never been able to master hand sharpening of drills, Like Mick "i've tried and I've tried", I guess I'm just not skilled that way. I have tried to use the "craftsman" sharpener with poor results it's in a box in the shop somewhere now. I just returned to N.A. from Australia where the club that I visit when I,m out there had a show day. One of the fellows had a drill sharpening jig which gave excellent results. It works like the craftsman one but is more robust and had a fine adjustment. There are three castings available from "Hobby Mechanics" in Queensland. The fellow had made one modification from the original drawings and that was to use a small 4jaw (2 inch) wood lathe chuck to hold the drills versus the Jacobs called for in the plans. He said that the results were more satisfactory that way. I was impressed enough to order a set of castings(aud45.75) I've just gotten back so haven't done anything with them yet but the plans and instructions are very clear. Hobby mechanics advertises in The Australian Model Engineer. I have no conection with either.
Potts Drill Grinding Jig
- Thread starter jmshep
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Owen
From the web site that looks like a good design but I note that it is a 4 facet type. I already have a jig for 4 facet grinding that works well but I suspect yours is easier to use looking at the illustration. 4 facet drills are great but not for everything, hence my quest for a good 'conventional' grinding jig.
Thanks for the post it has given me some ideas if I ever get round to building my own - I'm still not decided which way to go!
From the web site that looks like a good design but I note that it is a 4 facet type. I already have a jig for 4 facet grinding that works well but I suspect yours is easier to use looking at the illustration. 4 facet drills are great but not for everything, hence my quest for a good 'conventional' grinding jig.
Thanks for the post it has given me some ideas if I ever get round to building my own - I'm still not decided which way to go!
Delighted to stumble across this thread!
I am one who, in a completely unjustified burst of confidence, bought the bits for the Potts.
Amusingly(??) - bear in mind that I am Irish :
- I thought I had ordered the Potts Milling and Drilling Spindle. Kirk in Hemingway kindly offered to take it back, but I decided that I'd have a o when I've a bit more experience under my belt. 40+ years in woodturning is NOT the same as playing with the Myford Super 7 I bought a year ago!!
The Milling spindle worked out fine (just have to finish an overhead drive for it) so I hope to have a go at the drill grinding jig soonish.
Cheers all,
Ruaidhrí
Dublin
I am one who, in a completely unjustified burst of confidence, bought the bits for the Potts.
Amusingly(??) - bear in mind that I am Irish :
- I thought I had ordered the Potts Milling and Drilling Spindle. Kirk in Hemingway kindly offered to take it back, but I decided that I'd have a o when I've a bit more experience under my belt. 40+ years in woodturning is NOT the same as playing with the Myford Super 7 I bought a year ago!!The Milling spindle worked out fine (just have to finish an overhead drive for it) so I hope to have a go at the drill grinding jig soonish.
Cheers all,
Ruaidhrí
Dublin
