WPL EZ WPL-EFZ with spring shaft Ø 3mm WPL - LH - SE - Shaft Ø 4 mm WPL -LH - SG with Thread M4 on End piece - Shaft Ø 4 mm WEL WPL - LH - SGZ with thread M4 on End piece - Shaft Ø 4 mm WPL - LH - SEZ - Shaft Ø 4 mm WT 10 WT22 Unilin 33