The Rotur Pen Blank Trimming Tool Head is made from high-quality heat-treated steel. The PBT16 has a 16mm head and the PBT25 has a 25mm head. Each head comes with a grub screw and an allen key, designed for use with Rotur trimming tool shafts. This means it can be mounted in a drill chuck or in the Rotur 'Deluxe' or 'Universal' Pen Mandrel. With its 4 sharp cutting edges, the tool head makes precise cuts to your pen blanks, ensuring a smooth and accurate finish. Whether you're working on slimline pens or larger kits, the Rotur Pen Blank Trimming Tool Head is an essential addition to any pen maker's toolkit. Proudly made in the UK by Planet Plus Ltd. 16mm Head: PBT16