Narex Left Hand Marking Striking Notching Violin Knife 813711 This knife is manufactured by highly respected tool maker in Czech Republic Blade is made from hardened and tempered high speed steel Blade is 1/2 inche wide by 1/8 inche thick and 6 1/4 inches long Blade is beveled on one side only to keep the cut absolutely tight to your rule or square. Skew is 30 degrees and bevel is 35 drgrees