Shop › Jack Russel Terrier Knife Jack Russel Terrier Knife $200.00 Blade length 2 5/8, overall length is 7 inches. Metal used is CPM 154. Scales are canvas micarta. Comes with a Kydex sheath. Blade length 2 5/8, overall length is 7 inches. Metal used is CPM 154. Scales are canvas micarta. Comes with a Kydex sheath. Add To Cart Added!