Sharpening Rod - IdahoneA favorite among traditionalists the handheld single rod sharpener is a staple in any kitchen. Idahone has perfected this classic design with a high alumina ceramic bull nose rod that is extremely hard and durable. This fine rod is ideal for keeping knives honed with a grit behavior of approximately 1200 1800. Overall length is 15. 75", rod is 10" or 12 "with a diameter of 12. 7 mm. Includes a ring for hanging and the handle is crafted from hardwood.