Re: [mill_drill] R8 shank collet holder
- Rupert Evans wrote:
> I bought an R8 shank collet holder (can't remember where). It cameCheck your measurements against:
> with several collets, which I thought were the ER type. However, when
> I measured the taper, it was only 3 degrees. The collets are split
> only from the working end, while ER collets are apparently split from
> both ends.
> The collet closer screws on to the collet holder. It has an
> egg-shaped hole in it which may be designed to screw into a groove in
> each collet which could be used to extract the collet. Presumably one
> uses a piece of tubing to collapse the collet when removing the collet
> What is the type of collet which I have? If I knew, I could search
> for additional collets to fill out the set and find out what size of
> tubing to use to collapse the collets.