
They are actually morse taper drivers for drill bits, reamers and the like. Why is it that those that don't need, can't use and don't know always seem to find the best deals?
Sleeves adapt one size taper to another, drivers allow straight shanked tools such as drill bits, reamers and even taps to be driven directly by the taper. Like a collet without a closer.
Interesting. I'd like to examine that box. I've never seen the split taper Morse adapters before.
jack vines
They also come with a square inside. Then they are tap drivers.
They also come with a square inside. Then they are tap drivers.

Hey guys- joined the forum some time ago and have never posted til now. Those are what we called Morse taper collets. They can be used to hold a drill in the tailstock or the headstock if the spindle has a tapered bore. The only problem is that you've gotta have a boatload of them for different size drills. I'd go with a Jacobs chuck myself. Hope I didn't overstep my bounds.