06-05-2019, 03:34 PM
I watched that video too and thought it was a good idea as well. I think the main idea is to prevent the part from spinning if the drill grabs it, with the "overhang" of the blocks acting as a secondary function to keep the part from corkscrewing up the flutes of the drill. I would consider them more as stops than hold downs.
Although there is nothing to say that a large drill bit can't still grab the part and spin the entire drill press vise if it isn't secured to the table. I had mine do a 180° bat turn on me once. My drill press is 20" and I only have a smallish drill press vise for it so it isn't long enough to reach the column to stop it. That has always been a problem when working on smaller / shorter pieces of work.
I really should get a larger vise for it.
Although there is nothing to say that a large drill bit can't still grab the part and spin the entire drill press vise if it isn't secured to the table. I had mine do a 180° bat turn on me once. My drill press is 20" and I only have a smallish drill press vise for it so it isn't long enough to reach the column to stop it. That has always been a problem when working on smaller / shorter pieces of work.
I really should get a larger vise for it.
Willie