Double sided Leading Needle (1.5 -2.5mm) Diameter: 1.5 -2.5 mm Handle Length: 6 mm The whole length: 45 mm it is good qualit Double Sided Guide for Lazer Key Cutting Machine Diameter: 1.5 -2.5 mmSpecification:Diameter: 1.5 -2.5 mm Handle Length: 6 mm The whole length: 45 mm Double sided Leading Needle (1.5 -2.5mm)