Drill Collets

[MachineTom]

As anyone with a lathe knows no matter what size you could always use a bigger one. Sometimes the swing is to small, sometimes the bed lenght. This will not help you with the swing, but will help with the lenght. My Monarch is 20 BCC, so when a chuck and a drill chuck shorten the BCC to 14, your screwed if you need to drill a hole in the center of the work that 15". With these collets your drills mount inside the tail stock, giving you extra distance between work and tailstock. The bits will bottom at the drift opening in the collet, so there is not need for a drawbar to lock the collet in the tailstock.

A buddy of mine purchased at auction some large drawer storage units. Inside the units was STUFF, none of which he could use. I now have 500+ lbs of Stuff sitting on my floor, to sell for him.
Among the items are these drill collets, MT-1 & 2 limited sizes but will be real useful when the lathe need to be a little longer.

So I'm showing them here to see if anyone is interested, if so drop me an email or PM. There may be other sizes in unopened boxes, if so they will be included with the set if found. I will also include a MT2 to 1 sleeve "If found" There is one for sure others I have not yet seen. The sizes for the MT-1 and 2 almost dupe each other, MT-1 7/32, F, 11/32, 15/64, 3/8, 25/64, MT-2 1/4,11/32, 25/64, 3/8, 7/16. There may be 4 sets of MT-2, less of MT-1 at least at the moment.

drill inserted

 

[kvom]

I could use a MT-2 set. $$?

 

[MachineTom]

How about $15, and 4.95 USPS.

 

[kvom]

sounds OK, PM me your paypal or address for payment

 

[rklopp]

Are you sure those are not tap collets? See if they have a square drive up inside. I don't see how you could grip a straight shank drill tightly enough with one of these. These have tangs, so no way to pull them in tight with a drawbar.

 

[MachineTom]

For sure not made for taps. The collets grip the drill well because there is a stop, at the drift slot, the drill bottoms out, the axial pressure keeps the drill tight in the collet as the taper forces it closed.

 

[MachineTom]

Kvom, Diy, collets on their way. Thanks

 

[MachineTom]

Well, I've had the chance to try out these split sleeves (collets). They work much like a drill chuck in a tailstock without a tang, It is neccessary to first seat the sleeve in the tailstock for the drill to be tight, so using a piece of scrap AL, I ran the drill bit into the AL and seated the bit, then began a test to see how it held, drilling SS is always tough on a bit so I cranked really hard on the tail stock wheel, and let the chips jam up, the bit past the point where I would never push with a Drill chuck, I got the bit to spin, but was sure in normal use it would hold well. I just had to see how far it would go.