"These reduction bushes allow for the fitting of boring bars and drills with a straight shaft. All sizes are manufactured in a range of capacities. The sleeves are hardened and ground for a good fit for both the holder and the shaft."
"D185E spring collets, formally known as 4291, are to suit 2nd operation of finishing ops. Normally size for size to prevent marking of the component they are available in .5mm increments and imperial sizes. Specific sizes available on request. Suita...