Demko Knives | Custom AD20 The AD20 is the newest evolution from Andrew Demko and the AD10 design. Specs: Overall Length: 8.75" (222.25mm) Closed Length: 5" (127mm) Blade Length: 3.7" (93.98mm) Blade Thickness: 0.185" (4.68mm) Blade Steel: 20CV Blade Finish: Stonewash Blade Style: Wharncliffe Edge Style: Plain Handle Material: Grey G-10 Handle Thickness: 0.59" (14.87mm) Pocket Clip: Tip Up Weight: 6.1oz (172.94g) Lock Type: Andrew Demko Shark Lock