ISI, a name in quality tools and a byword for practical value with our range of socket sets.
The ISI-Werkzeugfabrik GMBH + CO KG was founded in Iserlohn in 1970. Our products are manufactured using the most up to date forging technology. Our watchword is precision.
ISI-socket sets are made of high quality steel and conform to DIN standards. ISI quality tools are noted for their handy form and practical design.
Constant modernisation has made ISI into a leading company using the most up to date technology and employing an experienced workforce.
ISI - A modern production plant.