This Mini-Tool combines features from our Scrudriver and Safe-Saw into one super useful little tool. Slip it on your finger and go pro with your Makedo making skills. Punch holes and screw into cardboard in a single fluid motion. Supplied in two ring sizes for best grip on finger - child (5+) and adult. A great addition to your Makedo Toolkit - available at www.make.do Especially useful for classroom and workshop settings where extra tools are required. Can be printed in an array. Demo video here http://youtu.be/bMq9OeGHb0E Sample printed in ABS @ 0.20mm on highest quality setting. Print upright with raft. Print time estimate is approximately 20mins per Mini-Tool.