The Stayput Spin Cut Tool is designed to spin and cut holes in fabric. The Tool is sold with a nylon (HDPE) cutting board. 9.5mm tool is for cuting holes for # 4 eyelets. The tool is simply attached to your battery drill. While holding the nylon cutting board behind the fabric, gently push the tool against the fabric to 'spin cut' your hole. Making a hole in fabric, particularly while working in the field is now an easy one person job making it ideal for mobile fabric workers, particularly on those occasions where it is better to complete the job without the need to remove it.