Simplify inserting your glued up pen tubes into your blanks; Keeps your fingers clean and safe from residual glue. Tapered, glue resistant tool compatible with tubes from 7mm to 15mm in diameter. Tool is chrome plated with a PVC handle sleeve. Place your pen tube over the end of the tool; Cover the entire surface of the tube with the glue of your choice; Slide the tube inside your pen blank with a twisting motion while still on the tool; Slowly release the tool from inside the blank, making sure the tube is centered; Allow your work to dry and cure properly. More Tube Insertion Tools are available: PKTINT is compatible with tubes 7mm to 11mm diameter; PKTINT3 has a #2 Morse Taper end, and is compatible with tubes 7mm to 15mm diameter.