Thumbturn CH001 Does not contain an exterior lock piece. Available with multiple different surface treatments. Specifications Type of product Escutcheon/rose/handle Close Downloads CH001_Dimensional_Drawing_1_ABLOY.pdf (.pdf, 172 kB) Close Thumbturn CH003Thumbturn for solid doors and balcony door latches. Thumbturn cylinder CH011Thumbturn cylinder. Dome and thumbturn CH020Exit thumbturn for solid doors.