bur chuck for 1/2" arbor shaft

A JSP exclusive invention, this versatile bur chuck system allows you to mount nearly any mandrel-based tool directly onto a full-size polishing motor with 1/2" arbor shafts. The precision steel adapter sleeve secures to your motor shaft with two tightening screws, while the business end features a Keyless Jacobs-Style Chuck that safely and firmly grips mounted tools with mandrels from 1 mm to 4 mm. Strong, stable, and incredibly convenient, it expands the capabilities of any polishing setup without the need for a flexible-shaft machine.