Reduction sleeve is used to reduce the collet size to take cutters with smaller shanks. Should only be used as a stop-gap as the the correct size collet is recommended. Should not be used for extensive periods or heavy work. Specifications: • Dia Metric: 9.5 • Dia Imperial: 3/8 • Overall Length Metric: 25 • Sawbore: 6.35 • Sawbore Imperial: 1/4