Spring tempered stainless steel blades. 13mm blade width with sliding pocket clip which can be used as a depth gauge slide. Reverse side is marked with 64th to mm conversion table. 12mm blade width. Can also be used as a depth gauge. Flexible. Round end. Rustless.EEC Class one accuracy (/-0.2mm at 20癈). Satin Chrome anti glare finish. Permanent black figures and graduations. Hanging hole.