The Pen Tube Insertion Tool is the perfect solution for keeping instant glue off your fingers when inserting pen tubes into blanks. Pen turners will love this tool. No more fingers glued together. Works on tubes from 7mm to 10mm. Simply slide pen tube onto the taper, apply glue to tube and insert tube with a twisting motion into the wood blank. Continue twisting as you remove the tool. Made from polished 303 Stainless Steel, this tool will last a lifetime. Made in the USA.