The Duckworth & Kent 5-361 Micrometer Diamond Knife is a precision surgical instrument used in ophthalmology. Made in England by the renowned brand Duckworth & Kent, this micrometer knife is designed for precise and accurate measurements and incisions in the eye. With its high-quality construction and specific use in ophthalmology, this instrument is essential for healthcare professionals in the field. ● Micrometer handle, overall length 105mm ● One division on the scale is 10 microns ● One revolution of the barrel is 500 microns ● Scaled 0-1mm (0-1000 microns)