Thanks so much guys, lots of possibilities, step one, I will check into the 3 to 4 adapter on ebay...I didn't even know there was such a critter. These drills, although ancient, are in darn nice shape maybe unused...and the thought of sinking a cutting tool into them make me shudder. Although I'm not much of a craftsman, I do respect the fine old tools they made back in the day.
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Turning #4MT drills down to #3MT...Possible?
- Thread starter PaulH
- Start date
I have an adapter. My mill is 3mt and my lathe is 4mt. Adapter works well...
you'll need to set up to cut an MT3 taper if you'd like to reduce the shank.
i recently purchased a 2040 lathe and i'm looking for MT4 tooling.
if you are not going to re-purpose these drills, i'd be very interested in a purchase or trade
i recently purchased a 2040 lathe and i'm looking for MT4 tooling.
if you are not going to re-purpose these drills, i'd be very interested in a purchase or trade
I believe he wants to use an MT4 drill with an MT3 socket.
Morse Taper Sleeves & Sockets
Shop for Morse Taper Sleeves & Sockets in Tool Holders. Global Industrial is a Leading Distributor of Machining supplies.
I have one of these adapters, bought it 40yrs ago, works good too when trying to get into deep spots for extension, you can also buy it at KBCTools.com
Depending on how much clearance above the table your drill has they may become too long with a 4-3 Morse taper adapter but worth a try.
Old drills are way better than new eBay drills. I bought a box set of drills on eBay recently and most of them were bent I suspect during the heat treat phase.
if you want to turn the taper down to a MT3 chuck up a new MT3 drill and set your compound slide to the correct angle with a dial indicator held in the tool post. I’m assuming that your compound has enough travel to cover the distance.
lets us know how you go.
Old drills are way better than new eBay drills. I bought a box set of drills on eBay recently and most of them were bent I suspect during the heat treat phase.
if you want to turn the taper down to a MT3 chuck up a new MT3 drill and set your compound slide to the correct angle with a dial indicator held in the tool post. I’m assuming that your compound has enough travel to cover the distance.
lets us know how you go.
I have machined a roughing mill from MT4 to MT3,but I think you have your answer withe the sleeve. Only issue I can see is loss of space between spindle and bed.