Slit Blades Disposable 2.8 Mm ( Keratome ) Disposable - Blade In Plastic Hand Le ,Diamond Shape Blade With Thin Stem, V Shaped Upper Part Of Blade Should Be Sharp B Oth Sides, Minimum 10 Degree Anngulation Between Upper And Lower Part Of Diamond Bl Ade . Maximum Diameter Of Blade Is 2.8Mm , Angle Between Stem And Blade Is 90 Degree , B Lade Should Be Strong Not Brittle Or Bending Type. ]